:root{--bg:#F5F9FE;--surface:#FFFFFF;--soft:#E8F2FC;--soft2:#F3F8FF;--blue:#2F7BFF;--blue-deep:#1E5FD6;--title:#16324F;--text:#243447;--muted:#5B6B7C;--note:#7A8896;--line:rgba(47,123,255,.16);--shadow:0 12px 32px rgba(22,50,79,.08);--footer:#10243A;--footer-text:#D7E6F5}
*{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","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;line-height:1.75}a{color:var(--blue-deep);text-decoration:none}a:hover{color:var(--blue)}img{display:block;max-width:100%;height:auto;object-fit:contain}button,a{touch-action:manipulation}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 var(--line)}.header-inner{width:min(1220px,calc(100% - 32px));height:72px;margin:auto;display:flex;align-items:center;gap:20px;white-space:nowrap}.brand-logo{display:flex;align-items:center;flex:0 0 auto}.brand-logo img{height:40px;width:auto;max-width:180px}.core-nav{display:flex;align-items:center;gap:6px;padding:5px;background:#fff;border:1px solid var(--line);border-radius:999px;box-shadow:0 8px 22px rgba(22,50,79,.05);margin-left:auto}.core-nav a{color:var(--title);padding:7px 13px;border-radius:999px;font-size:14px}.core-nav a.active{background:var(--soft);color:var(--blue-deep);font-weight:700}.header-actions{display:flex;align-items:center;gap:8px}.overview-btn,.mobile-menu-btn,.drawer-close{background:#fff;border:1px solid #C5D7F0;color:var(--title);border-radius:999px;cursor:pointer}.overview-btn{padding:8px 13px}.login-btn,.register-btn,.main-btn{display:inline-flex;align-items:center;justify-content:center;min-height:40px;padding:8px 18px;border-radius:999px;font-weight:700}.login-btn,.main-btn{background:var(--blue);color:#fff;border:1px solid var(--blue)}.login-btn:hover,.main-btn:hover{color:#fff;background:var(--blue-deep)}.register-btn{background:#fff;color:var(--title);border:1px solid #C5D7F0}.mobile-menu-btn{display:none;width:40px;height:40px;padding:0;font-size:20px}
.site-main{min-height:70vh}.container{width:min(1220px,calc(100% - 32px));margin:0 auto}.section{padding:58px 0}.section-tight{padding:38px 0}.section-title{max-width:760px;margin-bottom:24px}.section-title .eyebrow,.eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--blue-deep);font-weight:800;font-size:13px;letter-spacing:.04em;margin-bottom:10px}.section-title h2,h1,h2,h3{color:var(--title);line-height:1.28}.section-title h2{font-size:30px;margin:0 0 10px}.section-title p{margin:0;color:var(--muted)}.card{background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);border-radius:16px}.hero{position:relative;overflow:hidden;padding:58px 0 46px}.hero:before{content:"";position:absolute;left:-80px;top:-120px;width:360px;height:360px;border-radius:50%;background:rgba(47,123,255,.08);filter:blur(8px)}.hero-grid{position:relative;display:grid;grid-template-columns:1.05fr .95fr;gap:34px;align-items:center}.hero-copy h1{font-size:42px;margin:0 0 18px}.hero-copy p{font-size:17px;color:var(--muted);margin:0 0 22px}.hero-actions{display:flex;gap:10px;flex-wrap:wrap}.hero-visual{padding:20px;min-height:340px;display:flex;align-items:center;justify-content:center}.hero-visual img{width:100%;height:auto;max-height:360px;object-fit:contain}.hero-summary{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:28px}.summary-item{padding:15px}.summary-item strong{display:block;color:var(--title);margin-bottom:3px}.summary-item span{font-size:13px;color:var(--muted)}
.quick-scroll{display:flex;gap:12px;overflow-x:auto;padding:4px 2px 14px;scrollbar-width:thin}.quick-card{flex:0 0 230px;padding:17px}.quick-card .num{display:inline-flex;width:28px;height:28px;align-items:center;justify-content:center;border-radius:50%;background:var(--soft);color:var(--blue-deep);font-size:12px;font-weight:800}.quick-card h3{font-size:17px;margin:10px 0 5px}.quick-card p{font-size:13px;color:var(--muted);margin:0}.quick-card a{display:inline-block;margin-top:8px;font-size:13px;font-weight:700}.intro-strip{display:grid;grid-template-columns:1.2fr .8fr;gap:20px;align-items:center;padding:22px 24px;background:linear-gradient(135deg,#fff,#F3F8FF)}.intro-strip p{margin:0;color:var(--muted)}.intro-points{display:grid;grid-template-columns:repeat(2,1fr);gap:9px}.pill{background:var(--soft);border:1px solid var(--line);border-radius:12px;padding:10px 12px;color:var(--title);font-size:14px}
.two-col{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}.feature-card{padding:24px}.feature-card h3{font-size:24px;margin:0 0 8px}.feature-card p{color:var(--muted)}.feature-card ul{padding-left:20px;margin:14px 0}.feature-card li{margin:8px 0}.feature-card .text-link{font-weight:800}.topic-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.topic-card{overflow:hidden;padding:0}.topic-media{height:170px;padding:14px;background:var(--soft2);display:flex;align-items:center;justify-content:center}.topic-media img{width:100%;height:100%;object-fit:contain}.topic-body{padding:17px}.topic-body h3{font-size:18px;margin:0 0 7px}.topic-body p{font-size:13px;color:var(--muted);margin:0 0 8px}.topic-body a{font-size:13px;font-weight:800}.image-banner{display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:center;padding:24px}.image-banner img{max-height:280px;margin:auto}.image-banner h2{font-size:30px;margin:0 0 10px}.image-banner p{color:var(--muted);margin:0 0 18px}.news-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}.news-card{overflow:hidden}.news-card .media{height:220px;padding:14px;background:var(--soft2);display:flex;align-items:center}.news-card .media img{height:100%;width:100%;object-fit:contain}.news-card .body{padding:20px}.news-card h3{margin:0 0 8px;font-size:22px}.news-card p{color:var(--muted);margin:0}.safety-grid{display:grid;grid-template-columns:1fr 1fr 1fr;gap:18px}.safety-card{padding:22px}.safety-card h3{font-size:19px;margin:0 0 8px}.safety-card p{font-size:14px;color:var(--muted);margin:0}.review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.review{padding:20px}.review strong{color:var(--title)}.review p{margin:8px 0 0;color:var(--muted)}.faq-list{display:grid;gap:12px}.faq-item{padding:19px 20px}.faq-item h3{font-size:18px;margin:0 0 7px}.faq-item p{margin:0;color:var(--muted)}.compliance{padding:22px 24px;background:#E8F2FC;border-color:rgba(47,123,255,.22)}.compliance h2{margin:0 0 8px;font-size:22px}.compliance p{margin:0;color:#3A536B}
.inner-hero{padding:46px 0 26px}.inner-hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:26px;align-items:center}.inner-copy h1{font-size:38px;margin:0 0 14px}.inner-copy p{font-size:16px;color:var(--muted);margin:0 0 18px}.inner-media{padding:16px;min-height:260px;display:flex;align-items:center;justify-content:center}.inner-media img{width:100%;max-height:280px;object-fit:contain}.content-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:24px;align-items:start}.article{padding:28px}.article h2{font-size:26px;margin:30px 0 10px}.article h2:first-child{margin-top:0}.article h3{font-size:20px;margin:22px 0 8px}.article p{margin:0 0 16px;color:#33485c}.article ul{margin:10px 0 18px;padding-left:22px}.article li{margin:8px 0}.side-stack{display:grid;gap:16px;position:sticky;top:92px}.side-card{padding:19px}.side-card h2{font-size:18px;margin:0 0 8px}.side-card p{font-size:14px;color:var(--muted);margin:0 0 8px}.side-card a{display:block;padding:7px 0;border-bottom:1px solid rgba(47,123,255,.10);font-size:14px}.feedback-row{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.feedback-item{padding:17px;background:var(--soft2);border-radius:14px}.feedback-item strong{display:block;color:var(--title);margin-bottom:5px}.feedback-item p{font-size:14px;margin:0;color:var(--muted)}.steps{counter-reset:step;display:grid;gap:12px;margin:14px 0}.step{display:grid;grid-template-columns:38px 1fr;gap:12px;align-items:start;padding:14px;background:var(--soft2);border-radius:14px}.step:before{counter-increment:step;content:counter(step);display:flex;align-items:center;justify-content:center;width:30px;height:30px;border-radius:50%;background:var(--blue);color:#fff;font-weight:800}.step p{margin:0}.tag-row{display:flex;gap:8px;flex-wrap:wrap;margin:14px 0}.tag{display:inline-flex;padding:6px 10px;border-radius:999px;background:var(--soft);color:var(--blue-deep);font-size:13px;font-weight:700}
.site-footer{background:var(--footer);color:var(--footer-text);padding:46px 0 28px;margin-top:48px}.footer-grid{width:min(1220px,calc(100% - 32px));margin:auto;display:grid;grid-template-columns:1.5fr repeat(3,1fr);gap:28px}.footer-brand img{height:42px;width:auto;filter:brightness(1.2)}.footer-brand p{max-width:460px;color:#BFD0E0;font-size:14px}.site-footer h2{color:#fff;font-size:16px;margin:0 0 10px}.site-footer a{display:block;color:#D7E6F5;padding:4px 0;font-size:14px}.footer-note{width:min(1220px,calc(100% - 32px));margin:28px auto 0;padding-top:18px;border-top:1px solid rgba(255,255,255,.10);font-size:13px;color:#BFD0E0}
.drawer-backdrop{position:fixed;inset:0;background:rgba(16,36,58,.35);z-index:10000}.drawer{position:fixed;top:0;bottom:0;width:min(420px,92vw);background:#fff;z-index:10001;overflow-y:auto;transition:transform .25s ease;box-shadow:0 24px 70px rgba(16,36,58,.18)}.drawer-right{right:0;transform:translateX(102%)}.drawer-left{left:0;transform:translateX(-102%)}.drawer.open{transform:translateX(0)}.drawer-head{height:70px;display:flex;align-items:center;justify-content:space-between;padding:0 18px;border-bottom:1px solid var(--line);position:sticky;top:0;background:#fff;z-index:2}.drawer-head strong{font-size:20px;color:var(--title)}.drawer-close{width:36px;height:36px;font-size:22px}.drawer-brand img{height:38px;width:auto}.drawer-group{padding:18px;border-bottom:1px solid rgba(47,123,255,.10)}.drawer-group h2{font-size:15px;margin:0 0 10px;color:var(--muted)}.drawer-links{display:grid;grid-template-columns:repeat(2,1fr);gap:7px 12px}.drawer-links a{padding:8px 10px;background:var(--soft2);border-radius:10px;color:var(--title);font-size:14px}.drawer-open{overflow:hidden}.mobile-bottom-nav{display:none}
@media(max-width:980px){.header-inner{gap:10px}.core-nav{gap:2px}.core-nav a{padding:7px 9px}.overview-btn{display:none}.topic-grid{grid-template-columns:repeat(3,1fr)}.content-layout{grid-template-columns:1fr}.side-stack{position:static;grid-template-columns:repeat(3,1fr)}.footer-grid{grid-template-columns:1.5fr 1fr 1fr}.footer-grid>div:last-child{display:none}.hero-copy h1{font-size:36px}.inner-copy h1{font-size:34px}}
@media(max-width:760px){body{padding-bottom:64px}.site-header{position:sticky}.header-inner{height:66px;width:min(100% - 20px,1220px);display:grid;grid-template-columns:40px 1fr auto}.mobile-menu-btn{display:inline-flex;align-items:center;justify-content:center}.brand-logo{justify-self:center}.brand-logo img{height:36px;max-width:150px}.core-nav,.overview-btn,.desktop-register{display:none}.header-actions{justify-self:end}.login-btn{min-height:38px;padding:7px 14px}.container{width:min(100% - 24px,1220px)}.section{padding:42px 0}.hero{padding:34px 0}.hero-grid,.inner-hero-grid{grid-template-columns:1fr}.hero-copy h1,.inner-copy h1{font-size:31px}.hero-copy p{font-size:15px}.hero-visual{min-height:0;padding:12px}.hero-visual img{max-height:230px}.hero-summary{grid-template-columns:repeat(2,1fr)}.intro-strip{grid-template-columns:1fr}.two-col,.news-grid{grid-template-columns:1fr}.topic-grid{grid-template-columns:repeat(2,1fr);gap:12px}.topic-media{height:125px;padding:10px}.topic-body{padding:13px}.topic-body h3{font-size:16px}.image-banner{grid-template-columns:1fr;padding:18px}.image-banner img{max-height:210px}.news-card .media{height:180px}.safety-grid{grid-template-columns:1fr}.review-grid,.feedback-row{grid-template-columns:1fr}.article{padding:20px}.article h2{font-size:23px}.side-stack{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr}.footer-brand{grid-column:1/-1}.mobile-bottom-nav{display:grid;position:fixed;left:0;right:0;bottom:0;z-index:9998;grid-template-columns:repeat(4,1fr);background:#fff;border-top:1px solid var(--line);box-shadow:0 -10px 30px rgba(22,50,79,.08)}.mobile-bottom-nav a{text-align:center;padding:12px 5px;color:var(--title);font-size:13px;font-weight:700}.drawer-links{grid-template-columns:1fr 1fr}.inner-media{min-height:0}.inner-media img{max-height:220px}}
@media(max-width:420px){.hero-summary{grid-template-columns:1fr 1fr}.topic-grid{grid-template-columns:repeat(2,1fr)}.topic-media{height:108px}.topic-body p{font-size:12px}.footer-grid{grid-template-columns:1fr}.drawer-links{grid-template-columns:1fr}}