:root{--primary:rgb(70,139,223);--primary-dark:#2366b6;--primary-soft:#eaf4ff;--ink:#14213d;--muted:#637083;--line:#dce8f7;--card:rgba(255,255,255,.88);--bg:#f6faff;--shadow:0 18px 50px rgba(42,93,160,.10);--radius:24px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;color:var(--ink);background:radial-gradient(circle at top left,rgba(70,139,223,.14),transparent 34rem),linear-gradient(180deg,#fff 0%,#f6faff 44%,#fff 100%);line-height:1.72;overflow-x:hidden}a{color:inherit;text-decoration:none}img{max-width:100%;display:block}
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.86);backdrop-filter:blur(18px);border-bottom:1px solid rgba(220,232,247,.88)}.header-inner{width:min(1180px,calc(100% - 32px));margin:0 auto;min-height:72px;display:flex;align-items:center;justify-content:space-between;gap:18px}.logo{display:inline-flex;align-items:center;gap:10px;font-weight:800;letter-spacing:-.02em;color:#10213b}.logo img{width:38px;height:38px;border-radius:12px}.site-nav{display:none;position:absolute;top:72px;left:16px;right:16px;padding:12px;background:rgba(255,255,255,.96);border:1px solid var(--line);border-radius:20px;box-shadow:var(--shadow)}.site-nav.is-open{display:grid;gap:6px}.site-nav a{padding:12px 14px;color:#526071;border-radius:14px;font-size:15px}.site-nav a.active,.site-nav a:hover{color:var(--primary-dark);background:var(--primary-soft)}.nav-toggle{width:44px;height:44px;border:1px solid var(--line);border-radius:14px;background:#fff;display:grid;place-content:center;gap:5px}.nav-toggle span{width:18px;height:2px;background:#1c2c42;border-radius:2px}
.container,.section,.page-shell,.narrow-shell{width:min(1180px,calc(100% - 32px));margin:0 auto}.narrow-shell{max-width:920px}.section{padding:56px 0}.eyebrow,.badge{display:inline-flex;align-items:center;width:fit-content;gap:8px;color:var(--primary-dark);background:rgba(70,139,223,.1);border:1px solid rgba(70,139,223,.18);border-radius:999px;padding:7px 12px;font-size:13px;font-weight:700}.centered-hero{min-height:660px;width:min(1040px,calc(100% - 32px));margin:0 auto;display:grid;place-items:center;padding:72px 0 38px;text-align:center}.hero-content h1,.page-hero h1{margin:18px auto 16px;max-width:900px;font-size:clamp(38px,8vw,78px);line-height:1.05;letter-spacing:-.055em}.hero-content p,.page-hero p{max-width:740px;margin:0 auto 26px;color:var(--muted);font-size:17px}.download-btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 24px;border-radius:999px;background:var(--primary);color:#fff;font-weight:800;box-shadow:0 12px 30px rgba(70,139,223,.26);border:1px solid rgba(255,255,255,.5);transition:transform .18s ease,box-shadow .18s ease,background .18s ease}.download-btn:hover{transform:translateY(-2px);background:var(--primary-dark);box-shadow:0 16px 38px rgba(70,139,223,.32)}
.safe-tags,.tag-row{display:flex;flex-wrap:wrap;justify-content:center;gap:10px;margin-top:18px}.safe-tags span,.tag-row span,.mini-tag{color:#36526f;background:#fff;border:1px solid var(--line);padding:8px 12px;border-radius:999px;font-size:13px;box-shadow:0 8px 24px rgba(42,93,160,.06)}.product-bento{width:min(1120px,calc(100% - 32px));margin:0 auto 48px;display:grid;gap:16px}.product-main{position:relative;min-height:420px;border:1px solid var(--line);border-radius:32px;background:radial-gradient(circle at 50% 0%,rgba(70,139,223,.18),transparent 30rem),linear-gradient(135deg,rgba(255,255,255,.96),rgba(239,247,255,.82));box-shadow:var(--shadow);padding:26px;overflow:hidden;display:grid;place-items:center}.product-main:after{content:"";position:absolute;inset:18px;border-radius:26px;border:1px solid rgba(70,139,223,.10);pointer-events:none}.phone-frame{width:min(270px,80vw);padding:12px;border-radius:34px;background:#13233a;box-shadow:0 30px 80px rgba(20,33,61,.22);position:relative;z-index:2}.phone-frame img{width:100%;border-radius:24px}.status-stack{display:grid;gap:14px}.status-card,.card,.category-card,.feature-card,.scenario-card,.faq-card,.note-card,.step-card,.principle-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:0 12px 36px rgba(42,93,160,.07)}.status-card{padding:18px}.status-card strong,.card strong{display:block;margin-bottom:4px}.status-card p,.card p,.category-card p,.feature-card p,.scenario-card p,.note-card p,.step-card p,.principle-card p{margin:0;color:var(--muted)}
.section-head{max-width:760px;margin:0 0 24px}.section-head.center{margin-left:auto;margin-right:auto;text-align:center}.section-head h2{margin:8px 0 10px;font-size:clamp(28px,4vw,44px);line-height:1.12;letter-spacing:-.035em}.section-head p{margin:0;color:var(--muted)}.capability-grid,.scenario-grid,.faq-grid{display:grid;gap:16px}.card{padding:22px}.card .icon{width:42px;height:42px;border-radius:14px;display:grid;place-items:center;color:var(--primary-dark);background:var(--primary-soft);margin-bottom:14px;font-weight:900}
.roadmap{position:relative;display:grid;gap:16px;margin-top:26px}.roadmap:before{content:"";position:absolute;left:22px;top:16px;bottom:16px;width:2px;background:linear-gradient(var(--primary),rgba(70,139,223,.08))}.road-step{position:relative;padding-left:58px}.road-step .num{position:absolute;left:0;top:0;width:46px;height:46px;display:grid;place-items:center;border-radius:16px;background:var(--primary);color:#fff;font-weight:900;box-shadow:0 12px 28px rgba(70,139,223,.26)}.road-step .step-card{padding:20px}.step-card h3,.category-card h3,.feature-card h3,.scenario-card h3,.faq-card h3,.note-card h3,.principle-card h3{margin:0 0 8px;line-height:1.28}.text-link{display:inline-flex;margin-top:12px;color:var(--primary-dark);font-weight:800}
.category-bento,.bento-grid{display:grid;gap:16px}.category-card,.feature-card,.scenario-card,.faq-card{padding:22px;min-height:148px}.category-card.large,.feature-card.large{background:linear-gradient(135deg,rgba(70,139,223,.12),rgba(255,255,255,.92)),#fff}.feature-card.small{min-height:128px}.security-layout{display:grid;gap:18px;align-items:center}.security-copy{padding:26px;border-radius:28px;background:linear-gradient(135deg,#fff,#f1f7ff);border:1px solid var(--line)}.security-copy h2{margin-top:0;font-size:clamp(28px,4vw,42px);letter-spacing:-.03em;line-height:1.12}.security-copy p{color:var(--muted)}.principle-list{display:grid;gap:14px}.principle-card{padding:18px}.faq-card details{color:var(--muted)}.faq-card summary{cursor:pointer;color:var(--ink);font-weight:800;margin-bottom:8px}
.cta-section{width:min(1120px,calc(100% - 32px));margin:40px auto 70px;padding:clamp(30px,6vw,58px);text-align:center;border:1px solid var(--line);border-radius:34px;background:radial-gradient(circle at top,rgba(70,139,223,.18),transparent 25rem),linear-gradient(135deg,#fff,#eef7ff);box-shadow:var(--shadow)}.cta-section h2{margin:0 0 12px;font-size:clamp(28px,5vw,48px);letter-spacing:-.035em;line-height:1.12}.cta-section p{max-width:680px;margin:0 auto 24px;color:var(--muted)}
.page-hero{width:min(980px,calc(100% - 32px));margin:0 auto;padding:56px 0 28px;text-align:center}.page-hero h1{font-size:clamp(34px,6vw,58px)}.doc-layout{width:min(1120px,calc(100% - 32px));margin:0 auto 72px;display:grid;gap:20px}.article-card{padding:clamp(22px,5vw,38px);border:1px solid var(--line);border-radius:30px;background:rgba(255,255,255,.92);box-shadow:var(--shadow)}.article-card h2{margin-top:0;font-size:clamp(24px,4vw,34px);letter-spacing:-.025em}.article-card p{color:#526071}.info-list,.check-list,.clean-list{padding:0;margin:18px 0 22px;list-style:none;display:grid;gap:12px}.info-list li,.check-list li,.clean-list li{padding:14px 16px;background:#f7fbff;border:1px solid var(--line);border-radius:18px;color:#44556b}.info-list li strong,.check-list li strong{color:var(--ink)}.side-panel{display:grid;gap:16px}.side-panel .note-card{padding:20px}.side-panel .download-box{text-align:center;padding:24px;background:linear-gradient(135deg,var(--primary-soft),#fff)}.kv-grid{display:grid;gap:14px;margin-top:22px}.kv-grid .note-card{padding:18px}.download-steps{counter-reset:dl;display:grid;gap:14px;margin:24px 0}.download-steps li{list-style:none;counter-increment:dl;position:relative;padding:16px 16px 16px 58px;background:#fff;border:1px solid var(--line);border-radius:18px}.download-steps li:before{content:counter(dl);position:absolute;left:16px;top:14px;width:30px;height:30px;border-radius:11px;display:grid;place-items:center;background:var(--primary);color:#fff;font-weight:900}.about-grid{display:grid;gap:16px}
.site-footer{background:#10213b;color:rgba(255,255,255,.78);padding:48px 0 22px}.footer-grid{width:min(1180px,calc(100% - 32px));margin:0 auto;display:grid;gap:24px}.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;margin-bottom:12px}.footer-brand img{width:36px;height:36px;border-radius:12px}.site-footer h3{margin:0 0 10px;color:#fff;font-size:16px}.site-footer a{display:block;margin:8px 0;color:rgba(255,255,255,.72)}.footer-bottom{width:min(1180px,calc(100% - 32px));margin:28px auto 0;padding-top:18px;border-top:1px solid rgba(255,255,255,.12);display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px}
@media (min-width:700px){.capability-grid,.scenario-grid,.faq-grid,.about-grid,.kv-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.category-bento{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (min-width:960px){.nav-toggle{display:none}.site-nav{position:static;display:flex;align-items:center;gap:4px;padding:0;border:0;background:transparent;box-shadow:none}.site-nav a{font-size:14px;padding:9px 11px}.product-bento{grid-template-columns:1.3fr .7fr;align-items:stretch}.product-main{min-height:560px}.phone-frame{width:320px}.capability-grid{grid-template-columns:repeat(4,minmax(0,1fr))}.roadmap{grid-template-columns:repeat(6,minmax(0,1fr));align-items:start;gap:14px}.roadmap:before{left:6%;right:6%;top:24px;bottom:auto;width:auto;height:2px}.road-step{padding-left:0;padding-top:62px}.road-step .num{left:50%;transform:translateX(-50%)}.road-step:nth-child(even){padding-top:92px}.category-bento{grid-template-columns:repeat(4,minmax(0,1fr))}.category-card.large{grid-column:span 2;min-height:196px}.bento-grid{grid-template-columns:repeat(4,minmax(0,1fr));grid-auto-flow:dense}.feature-card.large{grid-column:span 2;min-height:240px}.feature-card.medium{grid-column:span 2;min-height:190px}.feature-card.small{min-height:170px}.security-layout{grid-template-columns:1fr .9fr}.scenario-grid{grid-template-columns:repeat(5,minmax(0,1fr))}.scenario-card{min-height:180px}.faq-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.doc-layout{grid-template-columns:minmax(0,1fr) 330px;align-items:start}.side-panel{position:sticky;top:96px}.footer-grid{grid-template-columns:1.6fr repeat(3,1fr)}}
@media (min-width:1160px){.site-nav a{padding:10px 14px}}