:root{
  --bg:#F5F9FE;--surface:#FFFFFF;--soft:#E8F2FC;--soft2:#F3F8FF;--blue:#2F7BFF;--blue-deep:#1E5FD6;
  --title:#16324F;--text:#243447;--muted:#5B6B7C;--hint:#7A8896;--line:rgba(47,123,255,.16);
  --shadow:0 12px 32px rgba(22,50,79,.08);--radius:16px;--max:1220px;
}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Arial,sans-serif;line-height:1.75;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}img{max-width:100%;height:auto;object-fit:contain;display:block}button{font:inherit}.site-header{position:sticky;top:0;z-index:9999;background:rgba(245,249,254,.94);backdrop-filter:blur(12px);border-bottom:1px solid rgba(47,123,255,.08)}.header-inner{max-width:var(--max);height:72px;margin:0 auto;padding:0 20px;display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:22px}.brand-logo img{width:auto;height:42px}.core-nav{justify-self:center;display:flex;align-items:center;gap:6px;padding:6px;background:#fff;border:1px solid var(--line);border-radius:999px;box-shadow:0 8px 26px rgba(22,50,79,.05);white-space:nowrap}.core-nav a{padding:8px 13px;border-radius:999px;color:var(--title);font-size:14px;font-weight:650}.core-nav a:hover,.core-nav a.is-active{background:var(--soft);color:var(--blue-deep)}.header-actions{display:flex;align-items:center;justify-content:flex-end;gap:8px;white-space:nowrap}.overview-btn,.login-btn,.register-btn,.main-btn{border-radius:999px;padding:10px 16px;font-weight:700;line-height:1;border:0;cursor:pointer}.overview-btn{background:var(--soft2);color:var(--title);border:1px solid var(--line)}.login-btn,.main-btn{background:var(--blue);color:#fff}.login-btn:hover,.main-btn:hover{background:var(--blue-deep)}.register-btn{background:#fff;color:var(--title);border:1px solid #C5D7F0}.mobile-menu-btn{display:none;background:var(--soft2);color:var(--title);border:1px solid var(--line);border-radius:999px;padding:9px 12px;font-weight:700}.drawer-mask{position:fixed;inset:0;background:rgba(16,36,58,.35);z-index:10000;opacity:0;visibility:hidden;transition:.25s}.site-drawer{position:fixed;top:0;right:0;width:min(430px,92vw);height:100vh;overflow-y:auto;background:#fff;z-index:10001;transform:translateX(105%);transition:.28s ease;box-shadow:-20px 0 50px rgba(16,36,58,.16)}.menu-open .drawer-mask{opacity:1;visibility:visible}.menu-open .site-drawer{transform:translateX(0)}.menu-open{overflow:hidden}.drawer-head{position:sticky;top:0;background:#fff;display:flex;align-items:center;justify-content:space-between;padding:18px 20px;border-bottom:1px solid var(--line);z-index:2}.drawer-brand img{height:40px;width:auto}.drawer-close{border:1px solid var(--line);background:var(--soft2);color:var(--title);border-radius:999px;padding:8px 12px;cursor:pointer}.drawer-groups{padding:8px 20px 26px}.drawer-group{padding:14px 0;border-bottom:1px solid rgba(47,123,255,.1)}.drawer-group h2{font-size:14px;margin:0 0 10px;color:var(--muted)}.drawer-links{display:grid;grid-template-columns:1fr 1fr;gap:8px}.drawer-links a{padding:10px 12px;background:var(--soft2);border-radius:10px;color:var(--title);font-size:14px}.drawer-links a:hover,.drawer-links a.is-active{background:var(--soft);color:var(--blue-deep)}
main{display:block}.wrap{max-width:var(--max);margin:0 auto;padding-left:20px;padding-right:20px}.section{padding:58px 0}.section-sm{padding:36px 0}.section-soft{background:var(--soft2);border-top:1px solid rgba(47,123,255,.08);border-bottom:1px solid rgba(47,123,255,.08)}.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:24px}.section-head h2{margin:0;color:var(--title);font-size:30px;line-height:1.25}.section-head p{margin:8px 0 0;color:var(--muted);max-width:760px}.eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--blue-deep);background:var(--soft);border:1px solid var(--line);border-radius:999px;padding:6px 10px;font-size:13px;font-weight:750;margin-bottom:14px}.hero{padding:58px 0 36px;background:radial-gradient(circle at 88% 10%,rgba(47,123,255,.13),transparent 28%),radial-gradient(circle at 10% 90%,rgba(47,123,255,.08),transparent 24%)}.hero-grid{display:grid;grid-template-columns:1.04fr .96fr;align-items:center;gap:42px}.hero h1,.page-hero h1{margin:0;color:var(--title);font-size:clamp(36px,5vw,58px);line-height:1.12;letter-spacing:-.02em}.hero p,.page-hero p{color:var(--muted);font-size:17px;max-width:760px}.hero-actions{display:flex;gap:12px;align-items:center;margin-top:24px}.hero-summary{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:28px}.summary-item{background:rgba(255,255,255,.78);border:1px solid var(--line);border-radius:14px;padding:14px}.summary-item strong{display:block;color:var(--title);font-size:14px}.summary-item span{display:block;color:var(--hint);font-size:12px;margin-top:3px}.hero-media,.media-card{background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);border-radius:20px;padding:18px}.hero-media img,.media-card img{width:100%;height:auto;object-fit:contain}.page-hero{padding:52px 0 26px}.page-hero-grid{display:grid;grid-template-columns:1fr .78fr;gap:34px;align-items:center}.page-hero.no-image .page-hero-grid{grid-template-columns:1fr}.page-hero-card{background:linear-gradient(135deg,#fff,var(--soft2));border:1px solid var(--line);box-shadow:var(--shadow);border-radius:20px;padding:28px}.breadcrumb{display:flex;gap:8px;align-items:center;color:var(--hint);font-size:13px;margin-bottom:12px}.breadcrumb a{color:var(--blue-deep)}
.quick-strip{display:flex;gap:12px;overflow-x:auto;padding:2px 2px 14px;scroll-snap-type:x proximity}.quick-item{flex:0 0 230px;scroll-snap-align:start;background:#fff;border:1px solid var(--line);border-radius:16px;padding:16px}.quick-item .num{font-size:12px;color:var(--blue-deep);font-weight:800}.quick-item h3{margin:7px 0 5px;color:var(--title);font-size:17px}.quick-item p{margin:0;color:var(--muted);font-size:13px;line-height:1.6}.quick-item a{display:block}.intro-bar{display:grid;grid-template-columns:.84fr 1.16fr;gap:24px;align-items:center;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);border-radius:18px;padding:24px}.intro-bar h2{color:var(--title);margin:0 0 8px}.intro-bar p{margin:0;color:var(--muted)}.two-col{display:grid;grid-template-columns:1fr 1fr;gap:22px}.card{background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);border-radius:16px;padding:22px}.card h2,.card h3{color:var(--title);margin-top:0}.card p{color:var(--muted)}.text-link{display:inline-flex;align-items:center;gap:6px;color:var(--blue-deep);font-weight:750;margin-top:8px}.text-link::after{content:'→'}.topic-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.topic-card{background:#fff;border:1px solid var(--line);border-radius:16px;overflow:hidden;box-shadow:0 10px 24px rgba(22,50,79,.06)}.topic-card .topic-image{padding:14px;background:var(--soft2);border-bottom:1px solid var(--line)}.topic-card img{width:100%;height:auto;object-fit:contain}.topic-card .topic-body{padding:16px}.topic-card h3{margin:0 0 6px;color:var(--title);font-size:17px}.topic-card p{margin:0;color:var(--muted);font-size:13px}.topic-card a{display:block}.banner-row{display:grid;grid-template-columns:1fr 1fr;gap:22px}.banner-card{background:#fff;border:1px solid var(--line);border-radius:18px;overflow:hidden;box-shadow:var(--shadow)}.banner-card .img-wrap{padding:16px;background:var(--soft2)}.banner-card .body{padding:20px}.banner-card h3{margin:0 0 8px;color:var(--title)}.banner-card p{margin:0;color:var(--muted)}.app-banner{display:grid;grid-template-columns:1fr .92fr;gap:28px;align-items:center;background:linear-gradient(135deg,#fff,var(--soft));border:1px solid var(--line);border-radius:20px;padding:28px;box-shadow:var(--shadow)}.app-banner h2{margin:0;color:var(--title)}.app-banner p{color:var(--muted)}.app-banner .media-card{box-shadow:none}.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.feature-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:22px}.feature-card h3{margin:0 0 8px;color:var(--title)}.feature-card p{margin:0;color:var(--muted)}.content-stack{display:grid;gap:18px}.content-panel{background:#fff;border:1px solid var(--line);border-radius:18px;padding:26px;box-shadow:0 10px 28px rgba(22,50,79,.06)}.content-panel:nth-child(even){background:linear-gradient(180deg,#fff,var(--soft2))}.content-panel h2{margin:0 0 10px;color:var(--title);font-size:26px}.content-panel p{margin:0;color:var(--text)}.content-panel p+p{margin-top:12px}.guide-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}.guide-item{background:#fff;border:1px solid var(--line);border-radius:16px;padding:20px}.guide-item h3{margin:0 0 8px;color:var(--title)}.guide-item p{margin:0;color:var(--muted)}.review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.review{background:#fff;border:1px solid var(--line);border-radius:16px;padding:20px}.review .mark{color:var(--blue);font-size:24px;font-weight:900;line-height:1}.review p{margin:8px 0 0;color:var(--muted)}.faq-list{display:grid;gap:12px}.faq-item{background:#fff;border:1px solid var(--line);border-radius:14px;padding:19px 20px}.faq-item h3{margin:0;color:var(--title);font-size:17px}.faq-item p{margin:8px 0 0;color:var(--muted)}.compliance{background:#10243A;color:#D7E6F5;border-radius:18px;padding:26px}.compliance h2{color:#fff;margin:0 0 8px}.compliance p{margin:0;color:#D7E6F5}.link-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.link-card{display:block;background:#fff;border:1px solid var(--line);border-radius:14px;padding:16px}.link-card strong{display:block;color:var(--title)}.link-card span{display:block;color:var(--muted);font-size:13px;margin-top:4px}
.site-footer{background:#10243A;color:#D7E6F5;margin-top:56px}.footer-inner{max-width:var(--max);margin:0 auto;padding:46px 20px 28px;display:grid;grid-template-columns:1fr 1.4fr;gap:60px}.footer-brand img{height:44px;width:auto;margin-bottom:16px}.footer-brand p{color:#BFD0E0;max-width:480px}.footer-links{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}.footer-links h2{font-size:14px;color:#fff;margin:0 0 10px}.footer-links a{display:block;color:#D7E6F5;margin:6px 0;font-size:14px}.footer-note{border-top:1px solid rgba(255,255,255,.12);max-width:var(--max);margin:0 auto;padding:18px 20px 26px;color:#BFD0E0;font-size:13px}.mobile-bottom-nav{display:none}
@media(max-width:1024px){.header-inner{gap:12px}.core-nav a{padding:8px 10px}.overview-btn{display:none}.topic-grid{grid-template-columns:repeat(3,1fr)}.link-grid{grid-template-columns:repeat(3,1fr)}.page-hero-grid{grid-template-columns:1fr .8fr}}
@media(max-width:820px){body{padding-bottom:68px}.header-inner{height:66px;grid-template-columns:1fr auto 1fr;padding:0 14px}.brand-logo{justify-self:center}.brand-logo img{height:38px}.core-nav,.overview-btn,.register-btn{display:none}.mobile-menu-btn{display:inline-flex;justify-self:start}.header-actions{justify-self:end}.login-btn{padding:10px 14px}.site-drawer{left:0;right:auto;transform:translateX(-105%)}.menu-open .site-drawer{transform:translateX(0)}.hero{padding-top:36px}.hero-grid,.page-hero-grid,.intro-bar,.app-banner{grid-template-columns:1fr}.hero-grid{gap:24px}.hero-summary{grid-template-columns:repeat(2,1fr)}.two-col,.banner-row,.guide-grid{grid-template-columns:1fr}.topic-grid{grid-template-columns:repeat(2,1fr)}.feature-grid,.review-grid{grid-template-columns:1fr 1fr}.link-grid{grid-template-columns:repeat(2,1fr)}.section{padding:46px 0}.section-head{align-items:flex-start;flex-direction:column}.footer-inner{grid-template-columns:1fr;gap:28px}.mobile-bottom-nav{position:fixed;left:0;right:0;bottom:0;z-index:9998;height:58px;display:grid;grid-template-columns:repeat(4,1fr);background:rgba(255,255,255,.97);border-top:1px solid var(--line);box-shadow:0 -8px 24px rgba(22,50,79,.08)}.mobile-bottom-nav a{display:flex;align-items:center;justify-content:center;color:var(--title);font-size:13px;font-weight:750}.page-hero-card{padding:22px}}
@media(max-width:560px){.wrap{padding-left:14px;padding-right:14px}.hero h1,.page-hero h1{font-size:36px}.hero p,.page-hero p{font-size:15px}.hero-summary{grid-template-columns:1fr 1fr}.topic-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.topic-card .topic-image{padding:10px}.topic-card .topic-body{padding:12px}.topic-card h3{font-size:15px}.topic-card p{font-size:12px}.feature-grid,.review-grid,.link-grid{grid-template-columns:1fr}.footer-links{grid-template-columns:1fr 1fr}.drawer-links{grid-template-columns:1fr 1fr}.section-head h2{font-size:26px}.content-panel{padding:21px}.content-panel h2{font-size:23px}.quick-item{flex-basis:210px}}