:root{--blue:#4D8FF7;--deep:#253B73;--cyan:#54D2F3;--text:#222;--muted:#5B6A82;--line:rgba(77,143,247,.12);--soft:#F7FAFF;--soft2:#EEF4FF;--soft3:#EEF9FF;--footer:#1B2F5B;--shadow:0 16px 40px rgba(37,59,115,.10)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:#fff;color:var(--text);font-family:"Microsoft YaHei","PingFang SC",Arial,sans-serif;line-height:1.8}a{text-decoration:none;color:inherit}img{display:block;max-width:100%;height:auto}.container{width:min(1180px,calc(100% - 32px));margin:auto}.site-header{position:sticky;top:0;z-index:9999;background:rgba(255,255,255,.92);backdrop-filter:blur(12px);box-shadow:0 8px 24px rgba(37,59,115,.08)}.header-inner{height:76px;display:flex;align-items:center;gap:28px}.brand img{width:150px;max-height:48px;object-fit:contain}.desktop-nav{display:flex;gap:6px;align-items:center;justify-content:center;flex:1}.desktop-nav a{padding:9px 12px;border-radius:999px;color:var(--deep);font-size:14px;white-space:nowrap}.desktop-nav a:hover,.desktop-nav a.active{background:linear-gradient(135deg,rgba(77,143,247,.10),rgba(84,210,243,.12));color:var(--blue);box-shadow:inset 0 -2px 0 var(--cyan)}.main-btn{display:inline-flex;align-items:center;justify-content:center;position:relative;overflow:hidden;isolation:isolate;background:linear-gradient(135deg,#4D8FF7 0%,#5EAEF5 48%,#54D2F3 100%);color:#fff;border-radius:999px;padding:11px 22px;box-shadow:0 12px 26px rgba(77,143,247,.22);transition:.2s}.main-btn:after{content:"";position:absolute;inset:0;border-radius:inherit;border:1px solid rgba(255,255,255,.56);box-shadow:0 0 12px rgba(77,143,247,.20),0 0 18px rgba(84,210,243,.24);pointer-events:none}.main-btn:hover{transform:translateY(-1px);box-shadow:0 16px 36px rgba(77,143,247,.28)}.mobile-header{display:none;height:66px;align-items:center;justify-content:space-between}.menu-toggle,.drawer-close{border:0;background:transparent;color:var(--deep);font-size:28px;cursor:pointer}.compact{padding:8px 13px;font-size:13px}.hero-section{padding:74px 0 34px;background:radial-gradient(circle at 15% 20%,rgba(77,143,247,.12) 0%,rgba(77,143,247,0) 30%),radial-gradient(circle at 88% 18%,rgba(84,210,243,.16) 0%,rgba(84,210,243,0) 28%),linear-gradient(135deg,#fff 0%,#F7FAFF 52%,#EEF4FF 100%)}.hero-grid,.split-section,.app-banner,.help-layout{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}.section-kicker,.tag,.label,.num,.badge{color:var(--blue);font-weight:700;letter-spacing:.04em}.hero-copy h1,.page-hero h1{font-size:clamp(36px,5vw,64px);line-height:1.18;margin:12px 0 20px;color:var(--deep)}.hero-copy p{font-size:17px;color:var(--muted);margin-bottom:24px}.hero-visual,.visual-card{background:#fff;border:1px solid rgba(77,143,247,.18);border-radius:28px;padding:24px;box-shadow:var(--shadow);position:relative;overflow:hidden}.hero-visual:before{content:"";position:absolute;width:180px;height:180px;border-radius:50%;background:rgba(84,210,243,.14);right:-70px;top:-70px}.hero-visual img,.content-img,.zone-card img,.app-section img{width:100%;max-height:420px;object-fit:contain;position:relative}.service-mini-grid{grid-column:1/-1;display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:6px}.card,.zone-card,.info-card,.service-mini,.faq-item,.intro-strip{background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);border-radius:20px}.service-mini{padding:18px}.service-mini strong{display:block;color:var(--deep);font-size:18px}.service-mini span{color:var(--muted);font-size:14px}.pill-nav{display:flex;gap:12px;overflow-x:auto;padding:18px 0 10px}.pill-nav a{min-width:175px;background:rgba(255,255,255,.86);border:1px solid rgba(77,143,247,.14);border-radius:999px;padding:12px 16px;box-shadow:0 10px 24px rgba(37,59,115,.06)}.pill-nav b{display:block;color:var(--deep)}.pill-nav small{color:var(--muted)}.section{padding:72px 0}.section.alt{background:var(--soft)}.section-head{max-width:760px;margin-bottom:30px}.section-title{font-size:clamp(28px,3.4vw,42px);line-height:1.3;margin:8px 0 12px;color:var(--deep)}.section-desc{color:var(--muted)}.intro-strip{padding:24px 28px;background:linear-gradient(135deg,#fff,#EEF9FF);color:var(--muted)}.info-board{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.info-card{padding:22px}.info-card h3,.zone-card h3,.card h3{color:var(--deep);margin:8px 0}.split-section{padding:34px 0}.split-section.reverse .visual-card{order:2}.split-copy ul{padding-left:18px;color:var(--muted)}.text-link{display:inline-flex;color:var(--blue);font-weight:700;margin-top:8px}.zone-wall{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.zone-card{padding:18px;display:flex;flex-direction:column}.zone-card img{height:150px;margin-bottom:14px}.zone-card p{color:var(--muted);font-size:14px}.app-banner{background:linear-gradient(135deg,#fff,#EEF4FF,#EEF9FF);border:1px solid var(--line);border-radius:28px;padding:30px;box-shadow:var(--shadow)}.feature-list{display:grid;grid-template-columns:1fr 1fr;gap:12px}.feature-list span{background:#fff;border:1px solid var(--line);border-radius:14px;padding:12px;color:var(--deep)}.help-layout{align-items:start}.help-cards{display:grid;grid-template-columns:1fr 1fr;gap:14px}.help-cards .card{padding:18px}.faq-list{display:grid;gap:14px}.faq-item{padding:20px}.faq-item h3{margin:0 0 8px;color:var(--deep)}.page-hero{padding:68px 0;background:linear-gradient(135deg,#fff,#F7FAFF,#EEF4FF)}.page-hero .container{display:grid;grid-template-columns:1.1fr .9fr;gap:38px;align-items:center}.page-hero p{color:var(--muted);font-size:17px}.content-wrap{padding:64px 0}.article-grid{display:grid;grid-template-columns:2fr 1fr;gap:28px}.article-card,.side-card{background:#fff;border:1px solid var(--line);border-radius:22px;padding:28px;box-shadow:var(--shadow)}.article-card h2,.article-card h3,.side-card h3{color:var(--deep)}.article-card p,.article-card li,.side-card p{color:var(--muted)}.article-card blockquote{margin:24px 0;padding:18px 22px;border-left:4px solid var(--cyan);background:var(--soft3);color:var(--deep)}.side-card{position:sticky;top:100px;align-self:start}.side-card a{display:block;color:var(--blue);padding:8px 0}.site-footer{background:var(--footer);color:#EEF6FF;padding:54px 0 24px}.footer-grid{display:grid;grid-template-columns:1.6fr repeat(3,1fr);gap:34px}.footer-brand img{width:150px;filter:brightness(0) invert(1);margin-bottom:14px}.site-footer h3{color:#fff}.site-footer a{display:block;color:#dcecff;padding:4px 0}.legal-note{border-top:1px solid rgba(255,255,255,.14);margin-top:34px;padding-top:20px;color:#cddbf1;font-size:13px}.mobile-drawer{position:fixed;left:0;top:0;bottom:0;width:min(84vw,320px);background:#fff;z-index:10001;transform:translateX(-105%);transition:.28s;box-shadow:20px 0 50px rgba(0,0,0,.12);padding:20px}.mobile-drawer.open{transform:translateX(0)}.drawer-overlay{position:fixed;inset:0;background:rgba(7,18,39,.45);z-index:10000;opacity:0;visibility:hidden;transition:.25s}.drawer-overlay.show{opacity:1;visibility:visible}.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}.drawer-top img{width:140px}.mobile-drawer nav a{display:block;padding:12px 8px;border-bottom:1px solid #edf2fb;color:var(--deep)}.mobile-drawer nav a.active{color:var(--blue)}body.drawer-open{overflow:hidden}
@media(max-width:980px){.desktop-header{display:none}.mobile-header{display:flex}.hero-grid,.page-hero .container,.split-section,.app-banner,.help-layout,.article-grid{grid-template-columns:1fr}.split-section.reverse .visual-card{order:0}.info-board,.zone-wall{grid-template-columns:repeat(2,1fr)}.footer-grid{grid-template-columns:1fr 1fr}.side-card{position:static}.hero-section{padding-top:46px}}
@media(max-width:640px){.container{width:min(100% - 22px,1180px)}.hero-copy h1,.page-hero h1{font-size:34px}.service-mini-grid,.info-board,.zone-wall,.help-cards,.feature-list,.footer-grid{grid-template-columns:1fr}.section{padding:52px 0}.hero-grid{gap:26px}.hero-visual,.visual-card{padding:14px}.zone-card img{height:auto;max-height:220px}.app-banner{padding:20px}.brand-mobile img{width:120px}.mobile-header{height:62px}.page-hero{padding:46px 0}}