:root{--bg:#07111f;--panel:#0d1c2f;--ink:#102033;--muted:#617086;--line:#dce4ed;--cyan:#31d5ca;--cyan-dark:#0f938d;--blue:#1565e8;--soft:#f2f7fb;--white:#fff;--warning:#fff4d8;--warning-ink:#76500a;--shadow:0 22px 70px rgba(4,18,36,.12)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,"PingFang SC","Microsoft YaHei",system-ui,sans-serif;color:var(--ink);background:#fff;font-size:16px;line-height:1.65}a{text-decoration:none;color:inherit}button{font:inherit}.section-shell{width:min(1160px,calc(100% - 40px));margin:0 auto}.topbar{height:72px;display:flex;align-items:center;gap:32px;padding:0 max(24px,calc((100vw - 1160px)/2));position:sticky;top:0;background:rgba(7,17,31,.94);backdrop-filter:blur(16px);z-index:20;color:#fff;border-bottom:1px solid rgba(255,255,255,.08)}.brand{display:flex;align-items:center;gap:11px;font-weight:760;letter-spacing:.02em;white-space:nowrap}.brand-mark{display:grid;place-items:center;width:34px;height:34px;border-radius:10px;background:linear-gradient(135deg,var(--cyan),#43a1ff);color:#061421;font-weight:900}.topbar nav{display:flex;gap:28px;margin-left:auto}.topbar nav a{color:#b9c7d7;font-size:14px}.topbar nav a:hover{color:#fff}.btn{display:inline-flex;justify-content:center;align-items:center;border:0;border-radius:12px;padding:13px 21px;font-weight:720;cursor:pointer;transition:.2s transform,.2s background,.2s box-shadow}.btn:hover{transform:translateY(-2px)}.btn-small{padding:9px 15px;font-size:14px}.btn-primary{background:var(--cyan);color:#06201f;box-shadow:0 10px 28px rgba(49,213,202,.2)}.btn-primary:hover{background:#58e8df}.btn-secondary{background:#fff;color:var(--ink);border:1px solid var(--line)}.btn-ghost{border:1px solid rgba(255,255,255,.25);color:#fff}.hero{width:100%;max-width:none;margin:0;background:var(--bg);color:#fff;min-height:600px;padding:90px max(24px,calc((100vw - 1160px)/2));display:grid;grid-template-columns:1.2fr .8fr;gap:80px;align-items:center;position:relative;overflow:hidden}.hero:after{content:"";position:absolute;width:520px;height:520px;border-radius:50%;background:radial-gradient(circle,rgba(27,117,255,.18),transparent 66%);right:-120px;top:-150px;pointer-events:none}.eyebrow{margin:0 0 12px;color:var(--cyan-dark);font-size:13px;font-weight:850;letter-spacing:.16em}.hero .eyebrow,.redeem .eyebrow,.contact .eyebrow{color:var(--cyan)}h1{font-size:clamp(42px,6vw,74px);line-height:1.08;letter-spacing:-.045em;margin:0 0 24px;max-width:760px}h1 span{color:var(--cyan)}.hero-text{font-size:19px;color:#b8c6d7;max-width:620px;margin:0 0 32px}.hero-actions{display:flex;gap:12px}.fee-note{font-size:14px;color:#9fb0c3;margin:20px 0 0}.fee-note strong{color:#e8f1fb}.decision-card{position:relative;z-index:1;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);border-radius:24px;padding:25px;box-shadow:0 30px 80px rgba(0,0,0,.25)}.decision-head{display:flex;align-items:end;justify-content:space-between;padding-bottom:17px;border-bottom:1px solid rgba(255,255,255,.1)}.decision-head span{font-weight:800;font-size:20px}.decision-head small{color:#8297ad}.decision-card ul{list-style:none;padding:0;margin:8px 0 0}.decision-card li{display:flex;gap:15px;align-items:center;padding:15px 0;border-bottom:1px solid rgba(255,255,255,.08)}.decision-card li:last-child{border-bottom:0}.number{color:var(--cyan);font-weight:820;font-size:12px}.decision-card strong{font-size:15px}.decision-card p{margin:1px 0 0;color:#8fa4ba;font-size:14px}.trust-strip{display:flex;justify-content:center;gap:0;border-bottom:1px solid var(--line);background:#fff}.trust-strip span{padding:18px 48px;color:#536277;font-size:14px;border-right:1px solid var(--line)}.trust-strip span:last-child{border:0}.products,.faq{padding-top:100px;padding-bottom:100px}.section-heading{display:flex;justify-content:space-between;align-items:end;gap:40px;margin-bottom:36px}.section-heading h2,.contact h2{font-size:clamp(30px,4vw,46px);line-height:1.15;letter-spacing:-.03em;margin:0}.section-heading>p{max-width:450px;margin:0;color:var(--muted)}.filter-row{display:flex;gap:9px;flex-wrap:wrap;margin-bottom:28px}.filter{border:1px solid var(--line);background:#fff;color:#526176;padding:9px 16px;border-radius:999px;cursor:pointer}.filter.active,.filter:hover{background:var(--ink);border-color:var(--ink);color:#fff}.product-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.product-card{border:1px solid var(--line);border-radius:18px;padding:22px;background:#fff;display:flex;flex-direction:column;min-height:310px;transition:.22s;position:relative}.product-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#bdcad9}.product-card.featured{border-color:#62d9d2;box-shadow:inset 0 3px var(--cyan)}.product-top{display:flex;justify-content:space-between;gap:10px;align-items:center}.category{font-size:12px;font-weight:800;color:var(--blue);background:#edf4ff;padding:5px 9px;border-radius:8px}.badge{font-size:12px;font-weight:800;color:#08726c;background:#e2fbf8;padding:5px 9px;border-radius:8px}.product-card h3{font-size:20px;line-height:1.35;margin:18px 0 8px}.product-card .desc{margin:0 0 18px;color:var(--muted);font-size:14px;flex:1}.price-row{display:flex;align-items:end;justify-content:space-between;border-top:1px solid var(--line);padding-top:17px}.price-meta small{display:block;color:#8290a2}.price{font-size:27px;font-weight:850;line-height:1}.store-price{font-size:12px;color:#7d8a9a;text-align:right}.card-actions{display:flex;gap:8px;margin-top:17px}.card-actions a,.card-actions button{flex:1;padding:10px;border-radius:10px;border:1px solid var(--line);background:#fff;font-size:14px;font-weight:750;cursor:pointer}.card-actions .ask{background:var(--ink);border-color:var(--ink);color:#fff}.catalog-note{display:flex;align-items:center;gap:18px;margin-top:24px;padding:20px 23px;border-radius:15px;background:var(--soft)}.catalog-note span{color:var(--muted);flex:1}.catalog-note a{font-weight:800;color:var(--blue)}.redeem{width:100%;max-width:none;background:var(--bg);color:#fff;padding:100px max(24px,calc((100vw - 1160px)/2))}.section-heading.light>p{color:#9fb0c3}.guide-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}.guide-card{padding:28px;border-radius:20px;background:#fff;color:var(--ink)}.guide-title{display:flex;align-items:center;gap:15px;margin-bottom:16px}.device-icon{width:54px;height:54px;border-radius:16px;display:grid;place-items:center;background:#eaf2ff;color:var(--blue);font-weight:900}.ph .device-icon{background:#e2fbf8;color:#08726c}.guide-title h3{margin:0;font-size:23px}.guide-title p{margin:0;color:var(--muted);font-size:14px}.guide-card ol{list-style:none;padding:0;margin:0}.guide-card li{display:flex;gap:14px;padding:16px 0;border-top:1px solid var(--line)}.guide-card li>span{width:25px;height:25px;display:grid;place-items:center;background:var(--soft);border-radius:50%;font-size:12px;font-weight:850;flex:none}.guide-card strong{font-size:15px}.guide-card li p{margin:3px 0 0;color:var(--muted);font-size:14px}.warning{display:flex;gap:18px;align-items:center;margin-top:20px;border:1px solid rgba(255,195,63,.25);background:rgba(255,195,63,.08);padding:17px 20px;border-radius:14px;color:#d8e4ef}.warning strong{color:#ffd778;white-space:nowrap}.faq-list{border-top:1px solid var(--line)}details{border-bottom:1px solid var(--line);padding:0 4px}summary{display:flex;justify-content:space-between;gap:20px;align-items:center;padding:23px 0;font-weight:780;cursor:pointer;list-style:none}summary::-webkit-details-marker{display:none}summary span{font-size:22px;color:#8492a5;transition:.2s}details[open] summary span{transform:rotate(45deg)}details p{max-width:900px;color:var(--muted);margin:-7px 0 22px}.contact{margin-bottom:80px;background:linear-gradient(135deg,#0c2a45,#07111f);color:#fff;border-radius:25px;padding:48px 52px;display:flex;align-items:center;justify-content:space-between;gap:40px}.contact p{color:#9fb0c3;max-width:620px;margin-bottom:0}.contact-actions{display:flex;gap:10px;flex-direction:column;min-width:245px}.contact .btn-secondary{background:transparent;color:#fff;border-color:rgba(255,255,255,.2)}footer{background:#050c16;color:#91a2b5;padding:35px max(24px,calc((100vw - 1160px)/2));display:flex;align-items:center;gap:30px;font-size:13px}footer .brand{color:#fff;margin-right:auto}footer p{max-width:480px}.mobile-cta{display:none}.toast{position:fixed;left:50%;bottom:92px;transform:translate(-50%,20px);background:#07111f;color:#fff;padding:10px 18px;border-radius:10px;opacity:0;pointer-events:none;transition:.25s;z-index:50}.toast.show{opacity:1;transform:translate(-50%,0)}
@media(max-width:900px){.topbar nav{display:none}.topbar .btn{margin-left:auto}.hero{grid-template-columns:1fr;padding-top:70px;padding-bottom:70px;gap:45px}.decision-card{max-width:620px}.trust-strip{overflow-x:auto;justify-content:flex-start}.trust-strip span{padding:15px 24px;white-space:nowrap}.product-grid{grid-template-columns:repeat(2,1fr)}.guide-grid{grid-template-columns:1fr}.contact{align-items:flex-start;flex-direction:column}.contact-actions{width:100%;flex-direction:row}.contact-actions>*{flex:1}footer{flex-wrap:wrap}}
@media(max-width:620px){body{padding-bottom:65px}.section-shell{width:min(100% - 28px,1160px)}.topbar{height:62px;padding:0 15px}.topbar .btn{display:none}.hero{padding:55px 18px 45px;min-height:auto}.hero h1{font-size:40px}.hero-text{font-size:17px}.hero-actions{flex-direction:column}.hero-actions .btn{width:100%}.fee-note{font-size:13px}.decision-card{padding:19px;border-radius:18px}.products,.faq{padding-top:72px;padding-bottom:72px}.section-heading{display:block;margin-bottom:28px}.section-heading>p{margin-top:14px}.filter-row{flex-wrap:nowrap;overflow:auto;padding-bottom:5px}.filter{white-space:nowrap}.product-grid{grid-template-columns:1fr}.product-card{min-height:0}.catalog-note{align-items:flex-start;flex-direction:column;gap:7px}.redeem{padding:72px 14px}.guide-card{padding:21px}.warning{align-items:flex-start;flex-direction:column;gap:5px}.contact{margin-bottom:0;width:100%;border-radius:0;padding:42px 20px}.contact-actions{flex-direction:column}.contact-actions>*{width:100%}footer{padding:32px 18px;display:block}footer .brand{margin-bottom:18px}.mobile-cta{position:fixed;display:grid;grid-template-columns:1fr 1fr;left:0;right:0;bottom:0;height:64px;z-index:30;background:#fff;box-shadow:0 -6px 24px rgba(4,18,36,.12)}.mobile-cta button,.mobile-cta a{border:0;display:flex;justify-content:center;align-items:center;font-weight:800}.mobile-cta button{background:#fff;color:var(--ink)}.mobile-cta a{background:var(--cyan);color:#06201f}.mobile-cta small{margin-left:5px}}

.advantages,.order-methods{padding-top:100px;padding-bottom:100px}.advantage-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.advantage-grid article{background:var(--soft);border-radius:18px;padding:28px}.advantage-grid article>span{color:var(--cyan-dark);font-weight:850;font-size:13px}.advantage-grid h3{margin:15px 0 8px;font-size:21px}.advantage-grid p{margin:0;color:var(--muted)}
.warranty-band{background:var(--bg);color:#fff;padding:92px 0}.warranty-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}.warranty-grid article{border:1px solid rgba(255,255,255,.12);background:rgba(255,255,255,.05);border-radius:18px;padding:26px}.warranty-grid h3{margin:0 0 10px;font-size:20px}.warranty-grid p,.warranty-note{color:#aebdce;margin:0}.warranty-note{margin-top:18px;font-size:14px}
.family-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}.family-card{border:1px solid var(--line);border-radius:20px;padding:24px;background:#fff;display:flex;flex-direction:column}.family-card.featured{border-color:#62d9d2;box-shadow:inset 0 3px var(--cyan)}.family-card h3{font-size:24px;margin:18px 0 8px}.family-summary{color:var(--muted);margin:0 0 18px}.family-price{display:flex;justify-content:space-between;align-items:end;border-top:1px solid var(--line);padding-top:17px}.family-price small{color:#8290a2;display:block}.family-price strong{font-size:28px}.family-card>details{margin-top:17px;border:0}.family-card>details>summary{padding:12px 15px;background:var(--ink);color:#fff;border-radius:11px;justify-content:center}.family-card>details[open]>summary{border-radius:11px 11px 0 0}.variant-panel{border:1px solid var(--line);border-top:0;padding:18px;border-radius:0 0 12px 12px}.variant-tabs{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:17px}.variant-tab{border:1px solid var(--line);background:#fff;border-radius:9px;padding:8px 11px;cursor:pointer;font-size:14px;font-weight:750}.variant-tab.active{background:#e2fbf8;border-color:#62d9d2;color:#08726c}.variant-description{color:var(--muted);font-size:14px;margin:0 0 14px}.detail-block{border-top:1px solid var(--line);padding-top:13px;margin-top:13px}.detail-block h4{margin:0 0 6px;font-size:15px}.detail-block p{color:var(--muted);font-size:13px;margin:0}.requirements{margin:0;padding-left:20px;color:var(--muted);font-size:13px}.variant-actions{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-top:17px}.variant-actions button,.variant-actions a{border:1px solid var(--line);border-radius:10px;padding:10px;font-size:14px;font-weight:750;text-align:center;cursor:pointer;background:#fff}.variant-actions .ask{background:var(--ink);border-color:var(--ink);color:#fff}.variant-price-row{display:flex;align-items:end;justify-content:space-between;gap:12px}.variant-price-row strong{font-size:25px}.variant-price-row small{display:block;color:#8290a2}.variant-price-row .platform-price{text-align:right;font-size:13px;color:var(--muted)}
.order-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}.order-card{border:1px solid var(--line);border-radius:20px;padding:27px}.order-card.recommended{border-color:#62d9d2;box-shadow:inset 0 3px var(--cyan)}.order-card h3{font-size:25px;margin:20px 0 12px}.order-card ul{padding-left:21px;color:var(--muted);margin:0 0 22px}.order-card li{margin:7px 0}.order-card .btn{width:100%}.post-purchase{margin-top:22px;background:var(--soft);border-radius:15px;padding:20px 23px;display:flex;gap:16px;align-items:center}.post-purchase span{color:var(--muted);flex:1}.post-purchase a{color:var(--blue);font-weight:800}
.subpage{min-height:100vh;background:var(--soft)}.subpage .topbar{position:relative}.subpage-main{padding:72px 0 100px}.subpage-hero{text-align:center;max-width:780px;margin:0 auto 48px}.subpage-hero h1{font-size:clamp(38px,6vw,64px);color:var(--ink);margin-left:auto;margin-right:auto}.subpage-hero p{color:var(--muted);font-size:18px}.comparison-wrap{overflow:auto;background:#fff;border-radius:18px;border:1px solid var(--line)}.comparison-table{width:100%;border-collapse:collapse;min-width:760px}.comparison-table th,.comparison-table td{padding:17px 18px;text-align:left;border-bottom:1px solid var(--line)}.comparison-table th{background:#f7fafc}.comparison-table tr:last-child td{border-bottom:0}.chooser{margin-top:34px;background:#fff;border-radius:20px;border:1px solid var(--line);padding:28px}.chooser h2{margin:0 0 20px}.question{margin:20px 0}.question>strong{display:block;margin-bottom:9px}.choice-row{display:flex;flex-wrap:wrap;gap:8px}.choice-row label{border:1px solid var(--line);border-radius:10px;padding:9px 13px;cursor:pointer}.choice-row input{margin-right:6px}.chooser-result{margin-top:24px;padding:22px;background:var(--bg);color:#fff;border-radius:15px}.chooser-result h3{margin:0 0 8px}.chooser-result p{color:#b8c6d7}.portal-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.portal-card{background:#fff;border:1px solid var(--line);border-radius:20px;padding:28px}.portal-card h2{margin:16px 0 8px}.portal-card p{color:var(--muted)}.portal-card .btn{width:100%;margin-top:12px}.portal-note{margin-top:24px;padding:20px;background:var(--warning);color:var(--warning-ink);border-radius:14px}
@media(max-width:900px){.advantage-grid,.portal-grid{grid-template-columns:1fr}.family-grid{grid-template-columns:1fr}.order-grid{grid-template-columns:1fr}.warranty-grid{grid-template-columns:1fr}}
@media(max-width:620px){.advantages,.order-methods{padding-top:72px;padding-bottom:72px}.advantage-grid article{padding:22px}.warranty-band{padding:72px 0}.family-card{padding:20px}.variant-actions{grid-template-columns:1fr}.post-purchase{align-items:flex-start;flex-direction:column}.subpage-main{padding:48px 0 72px}.chooser{padding:20px}.portal-card{padding:22px}}