:root{
    --brand: rgb(213, 5, 5);
    --brand-dark: rgb(180, 4, 4);
    --brand-deep: rgb(154, 3, 3);
    --text: #1d1d1f;
    --muted: #666a73;
    --line: #eceef2;
    --light: #f6f7f9;
    --soft-red: #fff2f2;
    --white: #ffffff;
    --shadow: 0 10px 30px rgba(30, 35, 45, .08);
    --radius: 18px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:"Microsoft YaHei","PingFang SC",Arial,sans-serif;background:#fff;color:var(--text);line-height:1.75;font-size:16px;overflow-x:hidden}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.container{width:min(1120px, calc(100% - 32px));margin:0 auto}
.site-header{position:relative;z-index:20;background:#fff}
.mobile-header{height:62px;display:grid;grid-template-columns:70px 1fr 86px;align-items:center;background:#fff;border-bottom:3px solid var(--brand-dark);padding:0 14px;box-shadow:0 4px 18px rgba(0,0,0,.06)}
.mobile-logo{justify-self:center;display:flex;align-items:center;justify-content:center}.mobile-logo img{height:36px;width:auto}.menu-toggle{width:42px;height:42px;border:0;background:transparent;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;padding:0;cursor:pointer}.menu-toggle span{display:block;width:24px;height:2px;background:var(--brand-dark);border-radius:99px}.top-action{display:inline-flex;align-items:center;justify-content:center;background:var(--brand);color:#fff;border-radius:999px;padding:8px 16px;font-weight:700;box-shadow:0 8px 16px rgba(213,5,5,.22);white-space:nowrap}.top-action:hover,.main-btn:hover{background:var(--brand-deep);transform:translateY(-1px)}.mobile-nav{display:none;background:#fff;border-bottom:1px solid var(--line);box-shadow:0 14px 26px rgba(0,0,0,.06);padding:8px 16px 14px}.mobile-nav.open{display:grid;grid-template-columns:1fr 1fr;gap:8px}.mobile-nav a{padding:11px 12px;border-radius:12px;background:#f7f7f8;font-weight:700;color:#333;text-align:center}.mobile-nav a.active{background:var(--brand);color:#fff}.desktop-header{display:none}.main-btn{display:inline-flex;align-items:center;justify-content:center;background:var(--brand);color:#fff;border-radius:999px;padding:12px 24px;font-weight:800;min-height:46px;box-shadow:0 10px 22px rgba(213,5,5,.24);transition:.2s ease}.text-link{display:inline-flex;align-items:center;color:var(--brand);font-weight:800;margin-top:12px}.text-link:after{content:"›";margin-left:6px}.section{padding:54px 0}.section-head{margin-bottom:24px}.section-kicker{display:inline-flex;align-items:center;padding:4px 12px;border-radius:999px;background:var(--soft-red);color:var(--brand);font-weight:800;font-size:14px;margin-bottom:10px}.section h2,.section-title{font-size:28px;line-height:1.25;margin:0 0 12px;color:#111}.section-desc{margin:0;color:var(--muted);max-width:780px}.official-hero{background:linear-gradient(180deg,#fff7f7 0%,#fff 55%,#f7f7f8 100%);padding:42px 0 32px;position:relative;overflow:hidden}.hero-grid{display:grid;gap:30px;align-items:center}.hero-copy h1{font-size:34px;line-height:1.18;margin:0 0 16px;letter-spacing:-.5px}.hero-copy p{color:#4d515a;margin:0 0 20px}.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}.hero-tags span{background:#fff;border:1px solid #f0cdcd;color:#8a1e1e;border-radius:999px;padding:7px 12px;font-weight:700;font-size:14px}.hero-visual{background:#fff;border:1px solid #f0eeee;border-radius:24px;box-shadow:var(--shadow);padding:12px;position:relative}.hero-visual img{border-radius:18px;width:100%;object-fit:cover}.brand-note{margin-top:20px;background:#fff;border:1px solid var(--line);border-left:5px solid var(--brand);border-radius:16px;padding:16px;color:#555}.category-section{background:#fff}.category-main-grid{display:grid;gap:16px}.category-sub-grid{display:grid;gap:14px;margin-top:14px}.category-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:0 8px 22px rgba(20,20,20,.05);transition:.2s ease}.category-card:hover,.match-card:hover,.content-card:hover{transform:translateY(-3px);box-shadow:var(--shadow)}.category-card h3{margin:0 0 10px;font-size:20px}.category-card p{margin:0;color:#5c616b}.category-main-card{min-height:230px;position:relative;overflow:hidden}.category-main-card:before{content:"";position:absolute;top:0;left:0;width:100%;height:5px;background:var(--brand)}.category-sub-card{background:#fafafa}.focus-grid{display:grid;gap:16px}.match-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:0 8px 22px rgba(20,20,20,.05)}.card-label{display:inline-block;background:var(--brand);color:#fff;border-radius:999px;padding:4px 10px;font-size:13px;font-weight:800;margin-bottom:10px}.match-card h3{margin:0 0 8px}.match-card p{margin:0;color:#5f646e}.info-split{background:#f7f7f8}.split-grid{display:grid;gap:20px}.split-panel{background:#fff;border-radius:22px;border:1px solid var(--line);padding:22px;box-shadow:var(--shadow)}.split-panel h2{margin:0 0 14px;font-size:24px}.info-list{display:grid;gap:12px}.info-item{padding:16px;border-radius:16px;background:#fafafa;border:1px solid #eeeeee}.info-item h3{margin:0 0 6px;font-size:18px}.info-item p{margin:0;color:#626773}.split-image{margin-top:16px;border-radius:18px;overflow:hidden;border:1px solid var(--line)}.showcase{background:#fff}.showcase-grid{display:grid;gap:26px;align-items:center}.showcase-image{border-radius:24px;overflow:hidden;box-shadow:var(--shadow);border:1px solid var(--line)}.showcase-copy p{color:#555b66}.check-list{list-style:none;padding:0;margin:18px 0 0;display:grid;gap:10px}.check-list li{position:relative;padding-left:28px;color:#343840}.check-list li:before{content:"";position:absolute;left:0;top:9px;width:13px;height:13px;background:var(--brand);border-radius:50%;box-shadow:inset 0 0 0 4px #fff;border:1px solid var(--brand)}.data-section{background:#fff7f7}.data-grid{display:grid;gap:24px;align-items:center}.data-cards{display:grid;gap:14px}.data-card{background:#fff;border:1px solid #f0d9d9;border-radius:18px;padding:18px;box-shadow:0 8px 22px rgba(213,5,5,.08)}.data-card strong{display:block;color:var(--brand);font-size:20px;margin-bottom:5px}.data-card p{margin:0;color:#5d626b}.app-showcase{background:#f7f7f8}.app-card{background:#fff;border:1px solid var(--line);border-radius:24px;padding:24px;display:grid;gap:24px;align-items:center;box-shadow:var(--shadow)}.app-card p{color:#565b64}.security-grid{display:grid;gap:14px}.security-card{border:1px solid var(--line);border-radius:18px;padding:20px;background:#fff}.security-card h3{margin:0 0 8px}.security-card p{margin:0;color:#606570}.responsible-box{background:#f7f7f8;border-left:6px solid var(--brand);border-radius:18px;padding:24px}.responsible-box p{margin:0 0 12px;color:#444b55}.responsible-box p:last-child{margin-bottom:0}.faq-grid{display:grid;gap:14px}.faq-item{background:#fff;border:1px solid var(--line);border-radius:18px;padding:20px}.faq-item h3{margin:0 0 8px;font-size:18px}.faq-item p{margin:0;color:#5d626b}.bottom-cta{padding:52px 0;background:linear-gradient(135deg,#fff1f1,#f7f7f8)}.cta-card{background:#fff;border:1px solid var(--line);border-radius:24px;padding:26px;text-align:center;box-shadow:var(--shadow)}.cta-card h2{margin:0 0 12px}.cta-card p{max-width:720px;margin:0 auto 20px;color:#5a606a}.page-hero{background:linear-gradient(180deg,#fff2f2,#fff);padding:46px 0 26px;border-bottom:1px solid var(--line)}.page-hero h1{font-size:32px;line-height:1.22;margin:0 0 14px}.page-hero p{margin:0;color:#555b66;max-width:850px}.content-wrap{padding:40px 0 56px;background:#fff}.content-grid{display:grid;gap:18px}.content-card{background:#fff;border:1px solid var(--line);border-radius:20px;padding:22px;box-shadow:0 8px 22px rgba(20,20,20,.05)}.content-card h2,.content-card h3{margin:0 0 10px}.content-card p{margin:0 0 12px;color:#565c66}.content-card p:last-child{margin-bottom:0}.mini-grid{display:grid;gap:14px;margin-top:16px}.mini-card{border:1px solid #eee;background:#fafafa;border-radius:16px;padding:16px}.mini-card h3{margin:0 0 8px}.mini-card p{margin:0;color:#606670}.notice-list{margin:10px 0 0;padding-left:20px;color:#4e545d}.notice-list li{margin:7px 0}.link-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px}.link-row a{padding:8px 13px;border:1px solid #f0cccc;border-radius:999px;color:var(--brand);background:#fffafa;font-weight:700}.download-steps{counter-reset:step;display:grid;gap:14px;margin:18px 0}.download-step{position:relative;padding:18px 18px 18px 58px;border-radius:18px;border:1px solid var(--line);background:#fff}.download-step:before{counter-increment:step;content:counter(step);position:absolute;left:18px;top:18px;width:28px;height:28px;border-radius:50%;background:var(--brand);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800}.site-footer{background:#202124;color:#fff;padding:40px 0 22px}.footer-grid{display:grid;gap:26px}.footer-logo img{height:42px;width:auto;margin-bottom:10px}.site-footer p{color:#d9d9d9;margin:0}.site-footer h3{font-size:17px;margin:0 0 10px}.site-footer a{display:block;color:#e9e9e9;margin:7px 0}.site-footer a:hover{color:#fff}.footer-notice{border-top:1px solid rgba(255,255,255,.14);margin-top:28px;padding-top:18px;font-size:14px}.footer-notice p{margin:6px 0;color:#cfcfcf}
@media (min-width:640px){.category-sub-grid,.focus-grid,.security-grid,.mini-grid,.faq-grid{grid-template-columns:repeat(2,1fr)}.hero-copy h1{font-size:42px}.section h2,.section-title{font-size:32px}.app-card{grid-template-columns:1fr 1fr}.data-cards{grid-template-columns:repeat(3,1fr)}}
@media (min-width:900px){.mobile-header,.mobile-nav{display:none}.desktop-header{display:block}.top-strip{background:var(--brand-dark);color:#fff;font-size:14px}.top-strip-inner{height:36px;display:flex;align-items:center;justify-content:space-between;gap:20px}.desktop-nav-wrap{background:#fff;border-bottom:1px solid var(--line);box-shadow:0 8px 20px rgba(0,0,0,.05)}.desktop-nav-inner{height:76px;display:flex;align-items:center;gap:24px}.brand-logo img{height:46px;width:auto}.desktop-nav{display:flex;align-items:center;gap:4px;flex:1;justify-content:center}.desktop-nav a{padding:10px 11px;border-radius:999px;color:#30343b;font-weight:800;font-size:15px}.desktop-nav a.active,.desktop-nav a:hover{background:var(--soft-red);color:var(--brand)}.search-icon{width:34px;height:34px;border:2px solid #d8dbe1;border-radius:50%;position:relative;flex:0 0 auto}.search-icon:after{content:"";position:absolute;width:10px;height:2px;background:#d8dbe1;right:-6px;bottom:3px;transform:rotate(45deg);border-radius:99px}.desktop-action{padding:10px 20px}.official-hero{padding:64px 0 42px}.hero-grid,.showcase-grid,.data-grid{grid-template-columns:1.03fr .97fr}.hero-copy h1{font-size:50px}.category-main-grid{grid-template-columns:repeat(4,1fr)}.category-sub-grid{grid-template-columns:repeat(4,1fr)}.focus-grid{grid-template-columns:repeat(4,1fr)}.split-grid{grid-template-columns:1fr 1fr}.showcase-grid.reverse .showcase-image{order:2}.security-grid{grid-template-columns:repeat(3,1fr)}.faq-grid{grid-template-columns:repeat(2,1fr)}.content-grid{grid-template-columns:1.1fr .9fr}.content-grid.single{grid-template-columns:1fr}.mini-grid{grid-template-columns:repeat(3,1fr)}.footer-grid{grid-template-columns:1.6fr 1fr 1fr 1fr}.page-hero h1{font-size:42px}}
@media (min-width:1120px){.desktop-nav a{padding:10px 14px}.section{padding:68px 0}}