:root{--page:#EAF2FB;--surface:#fff;--soft:#F4F8FF;--soft2:#EDF5FF;--soft3:#E1ECF8;--primary:#2FA8F7;--bright:#45C7FF;--deep:#137CD8;--title:#137CD8;--text:#24364F;--muted:#5D718A;--line:rgba(47,168,247,.14);--footer:#102B46;--shadow:0 18px 42px rgba(31,91,142,.12);--radius:28px;--header-h:76px}
*{box-sizing:border-box}html{scroll-behavior:smooth;overflow-x:hidden}body{margin:0;background:var(--page);color:var(--text);font-family:"PingFang SC","Microsoft YaHei",Arial,sans-serif;line-height:1.78;overflow-x:hidden}body.drawer-open{overflow-y:hidden}img{display:block;max-width:100%;height:auto}a{color:inherit;text-decoration:none;touch-action:manipulation}button{font:inherit;touch-action:manipulation}.shell{width:min(1180px,calc(100% - 32px));margin-inline:auto}.skip-link{position:fixed;left:12px;top:-60px;z-index:20000;background:#fff;color:var(--deep);padding:10px 14px;border-radius:12px}.skip-link:focus{top:12px}.main-btn{display:inline-flex;align-items:center;justify-content:center;min-width:94px;min-height:44px;padding:10px 24px;background:linear-gradient(135deg,#45C7FF 0%,#2FA8F7 48%,#137CD8 100%);color:#fff;border-radius:999px;box-shadow:0 12px 26px rgba(19,124,216,.18);font-weight:700;transition:.2s transform,.2s box-shadow}.main-btn:hover{transform:translateY(-2px);box-shadow:0 16px 30px rgba(19,124,216,.24)}
.site-header{position:sticky;top:0;z-index:9000}.desktop-header{height:var(--header-h);display:grid;grid-template-columns:190px 1fr auto;align-items:center;gap:26px}.site-header:before{content:"";position:absolute;inset:0 0 auto;height:var(--header-h);background:rgba(255,255,255,.92);backdrop-filter:blur(18px);box-shadow:0 8px 24px rgba(47,116,169,.08);z-index:-1}.brand-logo img{width:148px;max-height:48px;object-fit:contain}.core-nav{display:flex;align-items:stretch;justify-content:center;height:100%;gap:8px;white-space:nowrap}.core-link{position:relative;display:flex;align-items:center;padding:0 18px;color:var(--muted);font-weight:700;border-radius:16px;transition:.2s}.core-link:hover{color:var(--deep);background:var(--soft)}.core-link.is-active{color:var(--deep)}.core-link.is-active:after{content:"";position:absolute;left:25%;right:25%;bottom:10px;height:3px;border-radius:99px;background:var(--primary)}.header-register{justify-self:end}.channel-bar-wrap{background:rgba(244,248,255,.94);border-top:1px solid rgba(255,255,255,.72);border-bottom:1px solid var(--line)}.channel-bar{display:flex;gap:8px;overflow-x:auto;padding:10px 0;scrollbar-width:none}.channel-bar::-webkit-scrollbar{display:none}.channel-link{flex:0 0 auto;padding:7px 13px;border-radius:999px;color:var(--muted);font-size:14px;line-height:1.35}.channel-link:hover,.channel-link.is-active{background:#fff;color:var(--deep);box-shadow:0 6px 16px rgba(47,168,247,.1)}.mobile-header{display:none}.mobile-drawer,.drawer-mask,.mobile-bottom-nav{display:none}
main{min-height:60vh}.section{padding:68px 0}.section-tight{padding:38px 0}.section-head{display:flex;align-items:end;justify-content:space-between;gap:24px;margin-bottom:28px}.section-head h1,.section-head h2{margin:0;color:var(--title);line-height:1.25}.section-head h1{font-size:clamp(32px,5vw,54px)}.section-head h2{font-size:clamp(26px,4vw,38px)}.section-head p{max-width:680px;margin:8px 0 0;color:var(--muted)}.text-link{display:inline-flex;align-items:center;gap:6px;color:var(--deep);font-weight:700}.text-link:after{content:"→"}.text-link:hover{text-decoration:underline}.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}.hero-inner{display:grid;grid-template-columns:1.1fr .9fr;gap:34px;align-items:center;padding:38px}.hero-copy .eyebrow,.eyebrow{display:inline-flex;padding:6px 12px;border-radius:999px;background:var(--soft2);color:var(--deep);font-size:14px;font-weight:800}.hero-copy h1{font-size:clamp(34px,5vw,58px);line-height:1.14;margin:18px 0;color:var(--title)}.hero-copy p{font-size:18px;color:var(--muted);margin:0 0 22px}.hero-actions{display:flex;flex-wrap:wrap;gap:12px}.secondary-btn{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:10px 22px;border-radius:999px;background:var(--soft);color:var(--deep);font-weight:700;border:1px solid var(--line)}.hero-media img,.feature-media img{width:100%;max-height:430px;object-fit:contain;border-radius:22px;background:linear-gradient(145deg,var(--soft),#fff);padding:12px}.banner-wrap{padding:24px 0 12px;background:var(--page)}.banner-slider{position:relative;z-index:1;overflow:hidden;background:#fff;border-radius:34px;box-shadow:0 20px 48px rgba(31,91,142,.15);aspect-ratio:16/6.6}.banner-slide{position:absolute;inset:0;opacity:0;visibility:hidden;transition:opacity .45s ease}.banner-slide.is-active{opacity:1;visibility:visible}.banner-slide img{width:100%;height:100%;object-fit:contain;background:var(--soft)}.slider-arrow{position:absolute;z-index:2;top:50%;translate:0 -50%;width:46px;height:46px;border:0;border-radius:50%;background:rgba(255,255,255,.9);color:var(--deep);box-shadow:0 10px 24px rgba(18,72,116,.2);cursor:pointer;font-size:28px}.slider-prev{left:18px}.slider-next{right:18px}.slider-dots{position:absolute;left:50%;bottom:16px;translate:-50% 0;z-index:2;display:flex;gap:9px}.slider-dot{width:12px;height:12px;padding:0;border:2px solid #fff;border-radius:50%;background:rgba(19,124,216,.34);cursor:pointer}.slider-dot.is-active{background:var(--deep);transform:scale(1.12)}
.split{display:grid;grid-template-columns:1fr 1fr;gap:24px}.feature-card{display:grid;grid-template-columns:.92fr 1.08fr;gap:26px;padding:28px;align-items:center}.feature-card.reverse .feature-media{order:2}.feature-copy h2,.feature-copy h3{margin:10px 0;color:var(--title);line-height:1.3}.feature-copy h2{font-size:32px}.feature-copy h3{font-size:24px}.feature-copy p{margin:0 0 16px;color:var(--muted)}.mini-list{display:grid;gap:10px;margin:18px 0;padding:0;list-style:none}.mini-list li{position:relative;padding-left:22px;color:var(--text)}.mini-list li:before{content:"";position:absolute;left:0;top:.75em;width:9px;height:9px;border-radius:50%;background:linear-gradient(135deg,var(--bright),var(--deep))}.quick-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.quick-card{padding:24px;min-height:190px;display:flex;flex-direction:column}.quick-card h3{margin:0 0 10px;color:var(--title);font-size:22px}.quick-card p{margin:0 0 16px;color:var(--muted)}.quick-card .text-link{margin-top:auto}.notice-strip{padding:22px 26px;border-radius:22px;background:linear-gradient(120deg,#fff,#edf6ff);border:1px solid var(--line);color:var(--text);box-shadow:0 14px 32px rgba(31,91,142,.08)}.dashboard{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.dash-item{padding:22px}.dash-item span{display:inline-flex;width:42px;height:42px;border-radius:14px;align-items:center;justify-content:center;background:var(--soft2);color:var(--deep);font-weight:900}.dash-item h3{color:var(--title);margin:14px 0 8px}.dash-item p{margin:0;color:var(--muted)}.triple-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.category-card{padding:20px}.category-card img{width:100%;height:210px;object-fit:contain;border-radius:20px;background:var(--soft);padding:10px}.category-card h3{margin:18px 0 8px;color:var(--title);font-size:24px}.category-card p{margin:0 0 14px;color:var(--muted)}.review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.review{padding:24px}.review strong{color:var(--deep)}.review p{margin:8px 0 0;color:var(--muted)}.faq-list{display:grid;gap:14px}.faq-item{background:#fff;border:1px solid var(--line);border-radius:20px;padding:20px 22px}.faq-item h3{margin:0 0 8px;color:var(--title);font-size:19px}.faq-item p{margin:0;color:var(--muted)}
.page-hero{padding:52px 0 24px}.page-hero .hero-inner{min-height:390px}.content-grid{display:grid;grid-template-columns:1.6fr .8fr;gap:24px}.article-card{padding:34px}.article-card h2,.article-card h3{color:var(--title);line-height:1.35}.article-card h2{font-size:30px;margin:0 0 16px}.article-card h3{font-size:22px;margin:28px 0 10px}.article-card p{color:var(--muted);margin:0 0 14px}.article-card ul{padding-left:20px;color:var(--muted)}.side-card{padding:24px;position:sticky;top:140px;height:max-content}.side-card h2{margin:0 0 14px;color:var(--title);font-size:22px}.side-links{display:grid;gap:10px}.side-links a{padding:11px 14px;border-radius:14px;background:var(--soft);color:var(--deep);font-weight:700}.side-note{margin-top:18px;padding-top:18px;border-top:1px solid var(--line);color:var(--muted);font-size:14px}.cta-panel{display:flex;justify-content:space-between;align-items:center;gap:22px;padding:30px;background:linear-gradient(135deg,#fff,#e9f6ff)}.cta-panel h2{margin:0;color:var(--title)}.cta-panel p{margin:6px 0 0;color:var(--muted)}
.floating-service{position:fixed;right:18px;top:50%;transform:translateY(-50%);z-index:8000;display:grid;gap:10px;padding:14px;background:rgba(255,255,255,.94);border:1px solid var(--line);border-radius:20px;box-shadow:0 16px 38px rgba(31,91,142,.16)}.floating-service>a:not(.main-btn),.floating-service button{min-width:96px;padding:10px 8px;text-align:center;color:var(--deep);background:var(--soft);border:0;border-radius:12px;cursor:pointer}.floating-register{min-width:96px;padding-inline:12px}.site-footer{background:var(--footer);color:#EAF6FF;padding:54px 0 94px;margin-top:70px}.footer-grid{display:grid;grid-template-columns:1.4fr repeat(3,1fr);gap:34px}.footer-logo img{width:150px;max-height:52px;object-fit:contain;filter:brightness(0) invert(1)}.footer-grid h2{font-size:18px;margin:0 0 14px;color:#fff}.footer-grid p{color:rgba(234,246,255,.76);margin:14px 0 0}.footer-grid section:not(.footer-brand) a{display:block;color:rgba(234,246,255,.82);margin:8px 0}.footer-grid a:hover{color:#fff}.footer-bottom{display:flex;justify-content:space-between;gap:20px;padding-top:28px;margin-top:28px;border-top:1px solid rgba(255,255,255,.12);color:rgba(234,246,255,.65);font-size:14px}
@media (max-width:1280px){.floating-service{right:10px}.shell{width:min(1080px,calc(100% - 28px))}}
@media (max-width:1024px){.desktop-header{grid-template-columns:150px 1fr auto;gap:12px}.brand-logo img{width:132px}.core-link{padding-inline:11px}.floating-service{display:none}.hero-inner,.feature-card{grid-template-columns:1fr 1fr}.dashboard{grid-template-columns:repeat(2,1fr)}.quick-grid,.review-grid{grid-template-columns:repeat(2,1fr)}.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:760px){:root{--header-h:64px;--radius:22px}.shell{width:min(100% - 24px,680px)}.desktop-header,.channel-bar-wrap,.floating-service{display:none}.site-header:before{display:none}.mobile-header{position:relative;z-index:9000;height:64px;display:grid;grid-template-columns:54px 1fr auto;align-items:center;gap:8px;padding:8px 12px;background:rgba(255,255,255,.96);backdrop-filter:blur(16px);box-shadow:0 8px 22px rgba(31,91,142,.1)}.menu-toggle{width:44px;height:44px;border:0;border-radius:14px;background:var(--soft);display:grid;place-content:center;gap:5px}.menu-toggle span{display:block;width:22px;height:2px;background:var(--deep);border-radius:99px}.mobile-logo{justify-self:center}.mobile-logo img{width:126px;max-height:44px;object-fit:contain}.mobile-register{position:relative;z-index:9100;min-width:72px;min-height:44px;padding:8px 16px}.drawer-mask{position:fixed;inset:0;z-index:9990;display:block;background:rgba(10,32,52,.46);opacity:0;visibility:hidden;pointer-events:none;transition:.22s}.drawer-mask.is-visible{opacity:1;visibility:visible;pointer-events:auto}.mobile-drawer{position:fixed;left:0;top:0;bottom:0;z-index:10000;display:block;width:min(86vw,360px);background:#fff;transform:translateX(-105%);transition:.24s ease;box-shadow:18px 0 40px rgba(15,56,90,.2);overflow-y:auto;overscroll-behavior:contain}.mobile-drawer.is-open{transform:translateX(0)}.drawer-head{position:sticky;top:0;display:flex;align-items:center;justify-content:space-between;padding:16px;background:#fff;border-bottom:1px solid var(--line);z-index:2}.drawer-logo img{width:138px;max-height:48px;object-fit:contain}.drawer-close{width:44px;height:44px;border:0;border-radius:14px;background:var(--soft);color:var(--deep);font-size:30px;line-height:1}.drawer-nav{display:grid;grid-template-columns:1fr 1fr;gap:8px;padding:14px 14px 30px}.drawer-link{min-height:44px;display:flex;align-items:center;padding:10px 12px;border-radius:13px;background:var(--soft);color:var(--muted);font-size:15px}.drawer-link.is-active{background:var(--soft3);color:var(--deep);font-weight:800}.mobile-bottom-nav{position:fixed;left:0;right:0;bottom:0;z-index:8500;display:grid;grid-template-columns:repeat(4,1fr);padding:8px max(10px,env(safe-area-inset-left)) calc(8px + env(safe-area-inset-bottom));background:rgba(255,255,255,.96);border-top:1px solid var(--line);box-shadow:0 -8px 24px rgba(31,91,142,.11)}.mobile-bottom-nav a{min-height:48px;display:flex;align-items:center;justify-content:center;border-radius:14px;color:var(--muted);font-size:14px}.mobile-bottom-nav a.is-active{background:var(--soft2);color:var(--deep);font-weight:800}main{padding-top:0}.section{padding:44px 0}.section-tight{padding:28px 0}.banner-wrap{padding-top:14px}.banner-slider{border-radius:22px;aspect-ratio:16/9}.slider-arrow{width:42px;height:42px}.slider-prev{left:10px}.slider-next{right:10px}.slider-dots{bottom:10px}.hero-inner,.feature-card,.content-grid{grid-template-columns:1fr}.hero-inner{padding:24px}.hero-media{order:-1}.hero-copy h1{font-size:36px}.hero-copy p{font-size:16px}.split,.triple-grid,.quick-grid,.review-grid{grid-template-columns:1fr}.feature-card.reverse .feature-media{order:0}.dashboard{grid-template-columns:1fr 1fr}.category-card img{height:190px}.section-head{align-items:start;flex-direction:column}.content-grid{gap:18px}.article-card{padding:24px}.side-card{position:static}.cta-panel{align-items:flex-start;flex-direction:column}.footer-grid{grid-template-columns:1fr;gap:26px}.footer-bottom{flex-direction:column}.site-footer{padding-bottom:110px}.page-hero{padding-top:28px}.page-hero .hero-inner{min-height:auto}}
@media (max-width:460px){.mobile-logo img{width:108px}.mobile-register{min-width:66px;padding-inline:13px}.dashboard{grid-template-columns:1fr}.drawer-nav{grid-template-columns:1fr}.banner-slider{aspect-ratio:16/9.6}.category-card img{height:170px}}
@media (prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important;animation:none!important}}