:root{--bg:#f4f7ff;--bg2:#eef4ff;--ink:#10162f;--muted:#64708d;--primary:#3730a3;--primary2:#2563eb;--primary3:#06b6d4;--soft:#e8edff;--soft2:#dcf7ff;--line:rgba(42,56,120,.14);--white:#fff;--shadow:0 26px 70px rgba(28,43,110,.14);--container:1200px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Arial,sans-serif;background:radial-gradient(circle at top left,rgba(6,182,212,.18),transparent 34%),radial-gradient(circle at 82% 12%,rgba(99,102,241,.18),transparent 30%),linear-gradient(135deg,#f8fbff 0%,var(--bg) 46%,#edf2ff 100%);color:var(--ink)}body:before{content:"";position:fixed;inset:0;pointer-events:none;background-image:linear-gradient(rgba(55,48,163,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(55,48,163,.05) 1px,transparent 1px);background-size:44px 44px;mask-image:linear-gradient(to bottom,rgba(0,0,0,.6),transparent 80%);z-index:-1}a{color:inherit;text-decoration:none}img{max-width:100%;display:block}.site-header{position:sticky;top:0;z-index:50;height:78px;display:flex;align-items:center;justify-content:space-between;padding:0 6vw;background:rgba(255,255,255,.82);backdrop-filter:blur(18px);border-bottom:1px solid var(--line)}.brand{display:flex;align-items:center;gap:12px;font-weight:950;letter-spacing:-.03em}.brand img{width:42px;height:42px}.brand span{font-size:22px}nav{display:flex;align-items:center;gap:18px;color:#35405f;font-weight:850}nav a{font-size:14px}.nav-contact,.menu-toggle{border:0;cursor:pointer;font-weight:950}.nav-contact{background:var(--primary);color:#fff;border-radius:999px;padding:11px 16px;box-shadow:0 12px 28px rgba(55,48,163,.2)}.menu-toggle{display:none;background:var(--soft);color:var(--primary);border-radius:999px;padding:10px 14px}.hero-check{position:relative;width:min(var(--container),calc(100% - 32px));min-height:720px;margin:30px auto 24px;display:grid;grid-template-columns:1.02fr .98fr;gap:26px;align-items:center;padding:54px;border-radius:42px;overflow:hidden;background:linear-gradient(135deg,rgba(255,255,255,.96),rgba(234,241,255,.82));border:1px solid rgba(255,255,255,.8);box-shadow:var(--shadow)}.hero-bg{position:absolute;inset:-30%;background:radial-gradient(circle at 25% 20%,rgba(6,182,212,.22),transparent 28%),radial-gradient(circle at 80% 12%,rgba(55,48,163,.26),transparent 33%),linear-gradient(110deg,transparent 0 55%,rgba(37,99,235,.08) 55% 70%,transparent 70%);animation:aurora 12s ease-in-out infinite alternate}.hero-copy,.hero-panel{position:relative;z-index:1}.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-bottom:22px;color:#5d6888;font-size:13px}.breadcrumb a{color:var(--primary);font-weight:900}.breadcrumb strong{font-weight:900;color:#1e2542}.hero-copy>p,.section-title p,.download-panel p,.eyebrow{display:inline-flex;margin:0 0 14px;background:rgba(55,48,163,.08);border:1px solid rgba(55,48,163,.12);color:var(--primary);border-radius:999px;padding:9px 14px;font-weight:950;letter-spacing:.08em;font-size:12px}.hero-copy h1{font-size:clamp(46px,6.2vw,88px);line-height:.94;letter-spacing:-.075em;margin:0 0 22px;max-width:820px}.hero-copy>span{display:block;color:var(--muted);font-size:18px;line-height:1.9;max-width:760px}.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}.btn,.product-checks button,.table-btn,.official-table button,.support-form button{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:0;border-radius:15px;padding:14px 20px;font-weight:950;cursor:pointer;transition:transform .2s ease,box-shadow .2s ease,background .2s ease}.btn:hover,.product-checks button:hover,.table-btn:hover,.official-table button:hover,.support-form button:hover{transform:translateY(-2px);box-shadow:0 18px 36px rgba(55,48,163,.18)}.btn.primary,.product-checks button,.table-btn,.official-table button,.support-form button{background:linear-gradient(135deg,var(--primary),var(--primary2));color:#fff}.btn.secondary{background:#fff;color:var(--primary);box-shadow:inset 0 0 0 1px var(--line)}.btn.ghost{background:linear-gradient(135deg,var(--soft),var(--soft2));color:var(--primary)}.hero-metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:24px;max-width:600px}.hero-metrics article{background:rgba(255,255,255,.78);border:1px solid var(--line);border-radius:20px;padding:16px}.hero-metrics strong{display:block;font-size:28px;color:var(--primary)}.hero-metrics small{color:var(--muted);font-weight:850}.hero-panel{background:rgba(255,255,255,.86);border:1px solid var(--line);border-radius:34px;padding:24px;box-shadow:var(--shadow)}.slider{position:relative;height:560px;overflow:hidden;border-radius:28px;background:linear-gradient(145deg,#fff,#eff5ff)}.slide{position:absolute;inset:0;display:grid;grid-template-rows:1fr auto;align-items:center;gap:16px;padding:26px;opacity:0;transform:translateX(22px) scale(.98);transition:opacity .55s ease,transform .55s ease}.slide.active{opacity:1;transform:none}.slide img{width:100%;height:390px;object-fit:contain;margin:auto;filter:drop-shadow(0 24px 34px rgba(30,42,105,.16))}.slide div{background:rgba(255,255,255,.86);border:1px solid var(--line);border-radius:22px;padding:18px}.slide b{display:block;font-size:24px;margin-bottom:8px}.slide span{color:var(--muted);line-height:1.7}.slider-dots{display:flex;justify-content:center;gap:8px;margin-top:16px}.slider-dots button{width:34px;height:8px;border:0;border-radius:999px;background:#c8d2ef;cursor:pointer}.slider-dots button.active{background:linear-gradient(90deg,var(--primary),var(--primary3))}.service-grid,.section,.download-panel,.sub-hero{width:min(var(--container),calc(100% - 32px));margin:34px auto}.service-grid{display:grid;grid-template-columns:1.08fr .92fr .92fr;grid-template-areas:'main support download' 'main contact download';gap:16px}.service-card{min-height:255px;text-align:left;padding:28px;border-radius:30px;background:rgba(255,255,255,.92);border:1px solid var(--line);box-shadow:var(--shadow);display:flex;flex-direction:column;justify-content:space-between;transition:transform .25s ease,box-shadow .25s ease}.service-card:hover{transform:translateY(-4px);box-shadow:0 32px 80px rgba(55,48,163,.18)}.service-card.main{grid-area:main;background:linear-gradient(135deg,var(--primary),var(--primary2));color:#fff}.service-card:nth-child(2){grid-area:support}.service-card.accent{grid-area:download;background:linear-gradient(135deg,#eaf0ff,#dff7ff)}.service-card:nth-child(4){grid-area:contact}.service-card small{font-weight:950;color:var(--primary);letter-spacing:.08em;font-size:12px}.service-card.main small{color:#dff7ff}.service-card h2{font-size:54px;line-height:.95;letter-spacing:-.06em;margin:16px 0}.service-card h3,.proof-list h3,.product-checks h3,.scenario-grid h3,.path-grid h3,.security-list h3,.support-section h3,.article-grid h3{font-size:27px;line-height:1.08;margin:14px 0 8px}.service-card p,.proof-list p,.product-checks p,.scenario-grid p,.path-grid p,.security-list p,.faq-section p,.support-section p,.site-footer p,.article-grid p,.official-table p{color:var(--muted);line-height:1.82}.service-card.main p,.service-card.main strong{color:#eff7ff}.service-card strong{word-break:break-word}.section,.sub-hero{padding:42px;border-radius:34px;background:rgba(255,255,255,.90);border:1px solid var(--line);box-shadow:var(--shadow)}.section-title{text-align:center;max-width:930px;margin:0 auto 34px}.section-title h2,.download-panel h2,.support-section h2,.faq-section h2{font-size:clamp(36px,5vw,62px);line-height:.98;letter-spacing:-.06em;margin:0 0 14px}.section-title span,.download-panel span,.support-section span{display:block;color:var(--muted);line-height:1.85}.official-table{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.official-table>div{background:#fff;border:1px solid var(--line);border-radius:26px;padding:24px;box-shadow:0 14px 40px rgba(55,48,163,.08)}.official-table b{display:inline-flex;color:var(--primary);background:var(--soft);border-radius:999px;padding:8px 12px;margin-bottom:14px}.official-table strong{display:block;font-size:22px;margin-bottom:10px;word-break:break-word}.proof-list,.scenario-grid,.path-grid,.article-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.scenario-grid article,.path-grid article,.article-grid article{background:#fff;border:1px solid var(--line);border-radius:24px;padding:22px;box-shadow:0 14px 36px rgba(55,48,163,.08)}.path-grid b{display:grid;place-items:center;width:44px;height:44px;border-radius:16px;background:linear-gradient(135deg,var(--primary),var(--primary2));color:#fff;margin-bottom:12px}.verify-grid{grid-template-columns:repeat(3,1fr)}.article-grid{grid-template-columns:repeat(2,1fr)}.article-grid article{min-height:245px}.product-checks{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.product-checks article{background:#fff;border:1px solid var(--line);border-radius:28px;padding:22px;min-height:680px;display:flex;flex-direction:column;box-shadow:var(--shadow);transition:transform .25s ease,box-shadow .25s ease}.product-checks article:hover{transform:translateY(-6px);box-shadow:0 34px 84px rgba(55,48,163,.18)}.check-head{display:flex;align-items:center;gap:10px}.check-head span{display:grid;place-items:center;width:34px;height:34px;border-radius:50%;background:linear-gradient(135deg,var(--primary),var(--primary3));color:#fff;font-weight:950}.check-head small{color:var(--primary);font-weight:950;letter-spacing:.08em;font-size:12px}.product-checks img{height:210px;object-fit:contain;margin:18px auto;background:linear-gradient(135deg,#f6f8ff,#edf5ff);border-radius:24px;padding:14px}.product-checks ul{padding-left:18px;margin:10px 0 18px;color:var(--muted);line-height:1.8}.product-checks strong{font-size:22px;color:var(--primary)}.product-checks footer{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px}.table-wrap{overflow:auto;border:1px solid var(--line);border-radius:24px;background:#fff;box-shadow:0 18px 48px rgba(55,48,163,.08)}table{width:100%;border-collapse:collapse;min-width:980px}th,td{padding:18px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}th{background:linear-gradient(135deg,var(--primary),var(--primary2));color:#fff}td{color:#4b5674}.download-panel{display:grid;grid-template-columns:1fr auto;gap:24px;align-items:center;padding:42px;border-radius:34px;background:linear-gradient(135deg,var(--primary),var(--primary2) 60%,var(--primary3));color:#fff;box-shadow:var(--shadow);overflow:hidden;position:relative}.download-panel:before{content:"";position:absolute;right:-120px;top:-120px;width:320px;height:320px;background:rgba(255,255,255,.12);border-radius:50%}.download-panel p{background:rgba(255,255,255,.16);border-color:rgba(255,255,255,.2);color:#fff}.download-panel span{color:#eef6ff}.download-actions{display:flex;flex-direction:column;gap:12px;position:relative;z-index:1}.security-list{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.security-list article{display:grid;grid-template-columns:46px 1fr;gap:14px;background:#fff;border:1px solid var(--line);border-radius:22px;padding:18px}.security-list article>span{display:grid;place-items:center;width:38px;height:38px;border-radius:50%;background:linear-gradient(135deg,var(--primary),var(--primary3));color:#fff;font-weight:950}.faq-section details{border-top:1px solid var(--line);padding:18px 0}.faq-section summary{font-size:20px;font-weight:950;cursor:pointer}.support-section{display:grid;grid-template-columns:1.05fr .75fr;gap:22px}.tags{display:flex;flex-wrap:wrap;gap:10px;margin:20px 0}.tags em{font-style:normal;background:var(--soft);border:1px solid var(--line);border-radius:999px;padding:9px 12px;color:#4d5b80;font-size:13px;font-weight:800}.support-form{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin-top:18px}.support-form label{display:grid;gap:8px;color:#394361;font-weight:900}.support-form label span{font-size:14px}.support-form select,.support-form textarea{width:100%;border:1px solid var(--line);border-radius:16px;background:#fff;padding:14px 15px;font:inherit;color:#26304e;outline:none}.support-form .wide{grid-column:1/-1}.support-form button{grid-column:1/-1}.qr-card{text-align:center;border:1px solid var(--line);border-radius:28px;padding:24px;background:linear-gradient(135deg,#fff,#eef6ff);align-self:start}.qr-card img{width:min(300px,100%);aspect-ratio:1/1;object-fit:contain;margin:0 auto 16px;border:1px solid var(--line);border-radius:22px;background:#fff;padding:10px}.site-footer{margin-top:48px;padding:42px 6vw;background:linear-gradient(135deg,#11183a,var(--primary));color:#fff;display:flex;justify-content:space-between;gap:24px}.site-footer strong{display:block;font-size:34px}.site-footer p{max-width:760px;color:#eaf2ff}.footer-links{display:flex;flex-direction:column;gap:10px;align-items:flex-end}.footer-links a{color:#eef6ff}.footer-links button{border:1px solid rgba(255,255,255,.25);background:transparent;color:#fff;border-radius:999px;padding:12px 18px;cursor:pointer}.modal{position:fixed;inset:0;z-index:100;display:none;align-items:center;justify-content:center;padding:22px}.modal.active{display:flex}.modal-mask{position:absolute;inset:0;background:rgba(12,18,38,.72);backdrop-filter:blur(10px)}.modal-card{position:relative;z-index:1;width:min(480px,92vw);max-height:calc(100vh - 36px);overflow:auto;padding:30px;border-radius:30px;background:#fff;color:var(--ink);text-align:center;box-shadow:var(--shadow)}.modal-card .eyebrow{margin-left:auto;margin-right:auto}.modal-card img{width:min(280px,72vw);aspect-ratio:1/1;height:auto;object-fit:contain;margin:18px auto;border-radius:22px;border:1px solid var(--line);background:#fff;padding:10px}.modal-card h3{margin:0;font-size:30px}.modal-card p{color:var(--muted);line-height:1.8}.modal-actions{display:flex;justify-content:center;gap:12px;flex-wrap:wrap}.close{position:absolute;right:16px;top:14px;border:0;background:#111827;color:#fff;border-radius:50%;width:40px;height:40px;font-size:24px;cursor:pointer}.float-contact{position:fixed;right:max(16px,env(safe-area-inset-right));bottom:max(18px,env(safe-area-inset-bottom));z-index:80;border:0;border-radius:999px;background:linear-gradient(135deg,var(--primary),var(--primary2));color:#fff;padding:14px 18px;font-weight:950;cursor:pointer;box-shadow:0 18px 40px rgba(55,48,163,.26)}body.lock{overflow:hidden}.reveal{opacity:0;transform:translateY(24px);transition:opacity .72s ease,transform .72s ease}.reveal.in{opacity:1;transform:none}@keyframes aurora{0%{transform:translate3d(-2%,0,0) rotate(0deg)}100%{transform:translate3d(2%,2%,0) rotate(3deg)}}@media(max-width:1100px){nav{display:none;position:absolute;top:78px;left:18px;right:18px;flex-direction:column;align-items:flex-start;background:#fff;border:1px solid var(--line);border-radius:24px;padding:16px;box-shadow:var(--shadow)}nav.is-open{display:flex}.menu-toggle{display:block}.hero-check,.support-section{grid-template-columns:1fr}.hero-check{min-height:auto}.service-grid{grid-template-columns:1fr 1fr;grid-template-areas:'main main' 'support download' 'contact download'}.proof-list,.product-checks,.path-grid,.scenario-grid,.official-table{grid-template-columns:repeat(2,1fr)}.verify-grid,.article-grid{grid-template-columns:1fr 1fr}.download-panel,.site-footer{grid-template-columns:1fr;display:grid}.footer-links{align-items:flex-start}.slider{height:500px}.slide img{height:330px}}@media(max-width:680px){.site-header{height:70px;padding:0 18px}.brand img{width:36px;height:36px}.brand span{font-size:18px}.hero-check{padding:34px 18px;border-radius:28px}.hero-copy h1{font-size:40px}.hero-copy>span{font-size:16px}.hero-metrics,.service-grid,.proof-list,.product-checks,.path-grid,.scenario-grid,.security-list,.official-table,.verify-grid,.article-grid,.support-form{grid-template-columns:1fr}.service-grid{grid-template-areas:'main' 'support' 'download' 'contact'}.section,.download-panel,.sub-hero{padding:24px;border-radius:26px}.section-title{text-align:left}.service-card h2{font-size:42px}.hero-actions,.modal-actions,.download-actions{flex-direction:column}.btn,.product-checks button,.table-btn,.official-table button{width:100%}.product-checks footer{align-items:stretch;flex-direction:column}.site-footer{padding:34px 20px}.slider{height:420px}.slide{padding:18px}.slide img{height:250px}.slide b{font-size:20px}.modal-card{padding:24px 20px}.float-contact{right:12px;bottom:14px;padding:13px 15px}.qr-card img{width:min(260px,100%)}th,td{padding:14px}}